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1.
Stomatologiia (Mosk) ; 102(6. Vyp. 2): 68-72, 2023.
Artigo em Russo | MEDLINE | ID: mdl-38096398

RESUMO

The pandemic of coronavirus infection existed from 2019 to 2023. The World Health Organization (WHO) has announced on May 5, 2023 that the pandemic had ended. However, it does not cease to have an adverse effect on the health of the world population. Necrotic lesions of the bones of the facial skeleton are now a characteristic sign of a severe coronavirus infection. We conducted a review of scientific publications that reflected the relationship between coronavirus and necrotic processes of the skull bones, methods of treatment, prevention and the latest developments in this direction. The purpose of this article is to review existing studies on Post-Covid osteomyelitis of facial bones, its impact, features of the clinical picture of this disease, analysis of methods and means of treatment of this group of patients. Analysis of literature data has shown that the search for an ideal dressing material continues, especially the developments of native developers stand emphasized. The advantages of modern materials over traditional ones have become unquestionable, but further research in this direction is required.


Assuntos
COVID-19 , Ossos Faciais , Osteomielite , Humanos , COVID-19/complicações , Ossos Faciais/patologia , Osteomielite/etiologia , Osteomielite/patologia , Necrose
2.
World Neurosurg ; 174: 129-130, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36948247

RESUMO

Calvarial hyperstosis can be an idiopathic benign finding or secondary to a metabolic pathology. We herein describe a case of diffuse calvarial hyperstosis. A 26-year-old man known to have end-stage renal disease on regular hemodialysis, tertiary hyperparathyroidism, extensive brown tumors, and severe developmental impairment with skeletal deformities was referred to us for macrocephaly. On examination, the patient was chairbound, with speech and motor developmental delay, and frontal bossing. Brain computed tomography revealed diffuse hyperstosis of the calvarium and facial bones expansion with multiple sclerotic and lytic areas, causing subsequent narrowing of the basilar skull foramina. Brain magnetic resonance imaging demonstrated an extensive expansile bone marrow abnormality in the calvarium and skull base. There was mild generalized prominence of cortical sulci and ventricular system. The findings were in keeping with his known hypermetabolic state and tertiary hyperparathyroidism. The patient was managed conservatively with regular follow-up in the clinic.


Assuntos
Hiperostose , Osteíte Fibrosa Cística , Masculino , Humanos , Adulto , Ossos Faciais/patologia , Base do Crânio/patologia , Osso Esfenoide/patologia
3.
Gen Dent ; 71(1): 50-53, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36592359

RESUMO

Fibrous dysplasia is a developmental abnormality characterized by the replacement of normal bone tissue by fibrous connective tissue with poorly organized bone trabeculae. This disorder rarely occurs in the craniofacial region, but in such cases it causes facial asymmetries and has severe clinical implications for the patient. This case report describes the treatment of an 18-year-old man who presented with complaints of facial deformity and decreased visual acuity. Cone beam computed tomography revealed a diffuse bone lesion affecting the region of the maxillary, frontal, and nasal bones on the left side of the face. After microscopic examination, the diagnosis of craniofacial fibrous dysplasia was made. The patient underwent a bilateral temporal craniotomy to perform decompression of the orbital apices and correct the loss of visual acuity. In addition, surgical cosmetic contouring of the facial bones was performed. The patient has been followed up by a multidisciplinary team; at his most recent examination, 18 months after the last surgical intervention, his clinical condition remained stable.


Assuntos
Displasia Fibrosa Craniofacial , Displasia Fibrosa Óssea , Displasia Fibrosa Poliostótica , Masculino , Humanos , Adolescente , Crânio/cirurgia , Displasia Fibrosa Craniofacial/complicações , Displasia Fibrosa Craniofacial/patologia , Displasia Fibrosa Poliostótica/diagnóstico , Displasia Fibrosa Poliostótica/diagnóstico por imagem , Seguimentos , Ossos Faciais/patologia , Ossos Faciais/cirurgia , Maxila , Displasia Fibrosa Óssea/diagnóstico , Displasia Fibrosa Óssea/diagnóstico por imagem , Acuidade Visual
4.
Mod Rheumatol Case Rep ; 7(1): 298-301, 2023 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-35876059

RESUMO

Chronic nonbacterial osteomyelitis (CNO) is a chronic, sterile, inflammatory disease. It primarily presents with nonspecific bone pain and swelling but ultimately can cause bone destruction and deformities, if left untreated. The involvement of the cranial bones (apart from the mandible) is rare in CNO. In this report, we present a rare case of CNO affecting facial and cranial bones presenting as facial palsy with a review of the literature about similar affection. A 10-year-old, previously healthy female was initially evaluated for swelling of the left side of her face with slight tenderness on palpation, but no fever. Her complete blood count was unremarkable, her inflammatory markers were elevated (C-reactive protein 7.5 mg/dl and erythrocyte sedimentation rate 104 mm/h), and CT of facial and skull bones and MRI of brain showed a destructive osseous process involving the left maxillary, zygomatic, sphenoid bones and the clivus. Bone biopsy of the left maxilla showed fibrous dysplasia with abscess formation, most consistent with an infectious aetiology (acute osteomyelitis). She was started on oral clindamycin for a 3-month course. The facial swelling improved after starting clindamycin, but on her sixth week of treatment, she developed right-sided Bell's palsy. An MRI of the brain showed hyperenhancement of the right seventh cranial nerve. A month later, she was evaluated for right wrist and knee swelling, pain, and limitation of movement. Skeletal survey and MRI showed multifocal lesions with mixed sclerosis and lucency. Her inflammatory markers continued to be elevated. Another bone biopsy of the right radius showed similar findings of destruction with no evidence of malignancy. She was ultimately diagnosed with CNO. She was started on nonsteroidal anti-inflammatory drugs with gastric protection and regular follow-up. Over more than a year of follow-up, the patient's inflammatory markers remain normal, and joint swelling/limitation has remained in remission. We found five additional cases in the literature that presented with a similar presentation. To our knowledge, our patient is the first reported case in the USA involving the cranial/facial bones apart from the mandible presenting with facial palsy. The affection of the facial bones (apart from the mandible) in CNO is very rare, but the awareness of such a presentation by the clinician is an important aspect of reaching the diagnosis.


Assuntos
Paralisia de Bell , Paralisia Facial , Osteomielite , Humanos , Feminino , Criança , Paralisia de Bell/diagnóstico , Clindamicina/uso terapêutico , Dor , Osteomielite/complicações , Osteomielite/diagnóstico , Osteomielite/tratamento farmacológico , Ossos Faciais/patologia
5.
Rev. bras. ciênc. vet ; 29(4): 159-163, out./dez. 2022. il.
Artigo em Português | LILACS, VETINDEX | ID: biblio-1426889

RESUMO

O complexo de desordens hiperostóticas é uma condição rara e autolimitante, que tem as mesmas características histopatológicas, que cursa com proliferação óssea de caráter não neoplásico. Acomete cães jovens de raças distintas, com variabilidade quanto ao tipo de proliferação óssea e quanto aos ossos acometidos. O complexo é composto pela osteopatia craniomandibular, hiperostose da calota craniana e osteodistrofia hipertrófica. Podendo estar presente nos ossos da calota craniana, mandíbulas, coluna cervical e esqueleto apendicular. O presente relato, descreveu o quadro de uma cadela, da raça American Bully, não castrada, três meses de idade, que foi atendida com queixa de aumento de volume doloroso das mandíbulas, hiporexia e sialorreia há 15 dias, apresentando ao exame físico, amplitude de movimento diminuída e sensibilidade dolorosa da articulação temporomandibular, espessamento firme bilateral do crânio em região de fossa temporal, espessamento palpável de consistência firme das mandíbulas e crepitação respiratória. Após avaliação clínica e realização de exames complementares, chegou-se ao diagnóstico presuntivo, de complexo de desordens hiperostóticas. Foi instituído como conduta terapêutica o suporte analgésico, sendo eficaz para a manutenção das necessidades fisiológicas até a paciente alcançar a fase adulta. O prognóstico para esta paciente foi considerado bom, uma vez que não havia indícios de anquilose da articulação temporomandibular e/ou manifestações neurológicas.


The complex of hyperostotic disorders is a rare and self-limiting condition, which has the same histophatological characteristics, which courses with non-neoplastic bone proliferations. It affects young dogs of different breeds, with variability the bones affected. The complex is composed of craniomandibular osteopathy, calvarial hyperostotic syndrome and hypertrophic osteodystrophy. It may be present in the bones of the skullcap, jaws, cervical spine and appendicular skeleton. The present report describes the condition of a female dog, American Bully breed, entire, three months old, with a complaint of painful swelling of the jaws, hyporexia and drooling for 15 days, presenting on physical examination, reduced amplitude and pain of the temporomandibular joint, bilateral firm thickening of the skull in the temporal fossa region, palpable firm-consistent thickening of the mandibles and respiratory crackle. After clinical evaluation and complementary tests, a presumptive diagnosis of hyperostotic disorders complex was reached. It was instituted pain management as a treatment, being effective for the maintenance of physiological needs until the patient reaches the adulthood. The prognosis for this patient was considered good, since there was no evidence of temporomandibular joint ankylosis and/or neurological manifestations.


Assuntos
Animais , Cães , Articulação Temporomandibular/anormalidades , Desenvolvimento Ósseo , Hiperostose/veterinária , Transtornos Craniomandibulares/veterinária , Cães/anormalidades , Ossos Faciais/patologia , Analgésicos/uso terapêutico
6.
Plast Reconstr Surg ; 148(1): 183-192, 2021 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-34076623

RESUMO

BACKGROUND: Virtual surgical planning and computer-aided design/computer-aided manufacturing (CAD/CAM) for complex head and neck reconstruction has a number of cited advantages over conventional surgical planning, such as increased operative efficiency, fewer complications, improved osseous flap union, immediate osseointegrated dental implant placement, and superior functional and aesthetic outcomes. The authors performed a systematic review and meta-analysis of the available evidence on CAD/CAM maxillofacial reconstruction with the primary purpose of determining which approach is more efficacious. METHODS: In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a PubMed and Embase database search was performed to identify English-language, human-subject studies of CAD/CAM-assisted head and neck reconstruction. All comparative studies were included in a meta-analysis to identify differences in operative time, ischemia time, surgical-site occurrence, microvascular complication, and partial or total flap loss between the two groups. All included studies (comparative and noncomparative) were used in the systematic review, summarizing the various flap characteristics, technical nuances, and functional and aesthetic outcomes. RESULTS: Twelve articles were included in the meta-analysis, representing 277 patients in the CAD/CAM group and 419 patients in the conventional group. CAD/CAM was associated with 65.3 fewer minutes of operating room time (95 percent CI, -72.7 to -57.9 minutes; p < 0.0001) and 34.8 fewer minutes of ischemia time (95 percent CI, -38 to -31.5 minutes; p < 0.0001). There were no significant differences in surgical-site occurrence, nonunion, flap loss, microvascular complications, or hardware-related complications. CONCLUSIONS: CAD/CAM is associated with shorter operating room and ischemia times. There are no significant differences in flap or hardware-related complications between CAD/CAM and conventional surgical planning.


Assuntos
Desenho Assistido por Computador , Neoplasias de Cabeça e Pescoço/cirurgia , Planejamento de Assistência ao Paciente , Procedimentos de Cirurgia Plástica/métodos , Ferida Cirúrgica/cirurgia , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/patologia , Ossos Faciais/cirurgia , Fíbula/transplante , Retalhos de Tecido Biológico/transplante , Osso Frontal/diagnóstico por imagem , Osso Frontal/patologia , Osso Frontal/cirurgia , Sobrevivência de Enxerto , Humanos , Modelos Anatômicos , Duração da Cirurgia , Estudos Retrospectivos , Escápula/transplante , Ferida Cirúrgica/diagnóstico por imagem , Resultado do Tratamento
7.
Alcohol Clin Exp Res ; 45(7): 1383-1397, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33960427

RESUMO

BACKGROUND: Prenatal alcohol exposure (PAE) can result in developmental defects that include growth restriction, craniofacial anomalies, and cognitive behavioral deficits, though the presence and severity of these adverse outcomes can vary dramatically among exposed individuals. Preclinical animal models have demonstrated that the dose and timing of PAE account for much, but not all, of this phenotypic variation, suggesting that additional factors mitigate the effects of PAE. Here, we used a mouse model to investigate whether maternal age modulates the effects of PAE on the severity and variation in offspring growth and craniofacial outcomes. METHODS: Nulliparous C57BL/6N dams received either an intraperitoneal injection of ethanol (EtOH) or vehicle solution on gestational day 7.5. Dams were divided into four groups: (1) EtOH-treated young dams (6 to 10 weeks); (2) control young dams; (3) EtOH-treated old dams (6 to 7 months); and (4) old control dams. Neonate offspring growth restriction was measured through body mass and organ-to-body mass ratios, while skeletal craniofacial features were imaged using micro-CT and analyzed for size, shape, and variation. RESULTS: PAE and advanced maternal age each increased the risk of low birthweight and growth restriction in offspring, but these factors in combination changed the nature of the growth restriction. Similarly, both PAE and advanced maternal age individually caused changes to craniofacial morphology such as smaller skull size, dysmorphic skull shape, and greater skull shape variation and asymmetry. Interestingly, while the combination of PAE and advanced maternal age did not affect mean skull shape or size, it significantly increased the variation and asymmetry of those measures. CONCLUSION: Our results indicate that maternal age modulates the effects of PAE, but that the effects of this combination on offspring outcomes are more complex than simply scaling the effects of either factor.


Assuntos
Animais Recém-Nascidos/crescimento & desenvolvimento , Etanol/administração & dosagem , Etanol/efeitos adversos , Ossos Faciais/patologia , Idade Materna , Crânio/patologia , Animais , Peso ao Nascer/efeitos dos fármacos , Índice de Massa Corporal , Anormalidades Craniofaciais/induzido quimicamente , Feminino , Retardo do Crescimento Fetal/induzido quimicamente , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Tamanho do Órgão/efeitos dos fármacos , Fenótipo , Gravidez , Efeitos Tardios da Exposição Pré-Natal
8.
Am J Med Genet A ; 185(6): 1903-1907, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33750016

RESUMO

Kenny-Caffey syndrome type 2 (KCS2) and osteocraniostenosis (OCS) are allelic disorders caused by heterozygous pathogenic variants in the FAM111A gene. Both conditions are characterized by gracile bones, characteristic facial features, hypomineralized skull with delayed closure of fontanelles and hypoparathyroidism. OCS and KCS2 are often referred to as FAM111A-related syndromes as a group; although OCS presents with a more severe, perinatal lethal phenotype. We report a novel FAM111A mutation in a fetus with poorly ossified skull, proportionate long extremities with thin diaphysis, and hypoplastic spleen consistent with FAM111A-related syndromes. Trio whole exome sequencing identified a p.Y562S de novo missense variant in the FAM111A gene. The variant shows significant similarity to other reported pathogenic mutations fitting proposed pathophysiologic mechanism which provide sufficient evidence for classification as likely pathogenic. Our report contributed a novel variant to the handful of OCS and KCS2 cases reported with pathogenic variants.


Assuntos
Anormalidades Múltiplas/genética , Doenças do Desenvolvimento Ósseo/genética , Anormalidades Craniofaciais/genética , Nanismo/genética , Hiperostose Cortical Congênita/genética , Hipocalcemia/genética , Receptores Virais/genética , Anormalidades Múltiplas/diagnóstico por imagem , Anormalidades Múltiplas/patologia , Doenças do Desenvolvimento Ósseo/diagnóstico , Doenças do Desenvolvimento Ósseo/diagnóstico por imagem , Doenças do Desenvolvimento Ósseo/patologia , Anormalidades Cardiovasculares/diagnóstico , Anormalidades Cardiovasculares/genética , Anormalidades Cardiovasculares/patologia , Anormalidades Craniofaciais/diagnóstico , Anormalidades Craniofaciais/diagnóstico por imagem , Anormalidades Craniofaciais/patologia , Nanismo/diagnóstico , Nanismo/diagnóstico por imagem , Nanismo/patologia , Ossos Faciais/anormalidades , Ossos Faciais/patologia , Feminino , Feto , Predisposição Genética para Doença , Heterozigoto , Humanos , Hiperostose Cortical Congênita/diagnóstico , Hiperostose Cortical Congênita/diagnóstico por imagem , Hiperostose Cortical Congênita/patologia , Hipocalcemia/diagnóstico , Hipocalcemia/diagnóstico por imagem , Hipocalcemia/patologia , Masculino , Mutação/genética , Gravidez , Crânio/anormalidades , Crânio/patologia , Baço/anormalidades , Baço/diagnóstico por imagem , Sequenciamento do Exoma
9.
BMJ Case Rep ; 14(1)2021 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-33462005

RESUMO

We present a rare case of sarcoidosis with extensive bony destruction of the maxillofacial and skull base bones. A 65-year-old woman was referred with an asymptomatic, non-healing dental socket. Examination revealed an oroantral fistula that was biopsied and repaired under general anaesthesia. Investigations included plain and cross-sectional imaging. Serological tests, in particular ACE, were normal. Histology showed benign florid granulomatous inflammation. At 6 months, the patient remained asymptomatic. She was re-referred 3 years later with further bony destruction of her maxilla and mandible. Repeat imaging showed intrathoracic lymphadenopathy and skull base involvement. Repeat biopsy confirmed granulomatous inflammation. Given the pulmonary, histological and radiological findings, a sarcoidosis diagnosis was made. Following multidisciplinary team meetings, the patient was treated with methotrexate and arrangements made for close monitoring. This case highlights the need for a consensus in identifying, treating and developing a follow-up protocol in such patients.


Assuntos
Doenças Ósseas/diagnóstico , Ossos Faciais , Sarcoidose/diagnóstico , Base do Crânio , Idoso , Doenças Ósseas/patologia , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/patologia , Feminino , Humanos , Sarcoidose/patologia , Base do Crânio/diagnóstico por imagem , Base do Crânio/patologia
11.
Sci Rep ; 10(1): 4001, 2020 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-32132591

RESUMO

To investigate the characteristics of imaging changes with time of facial fractures, patients with facial fractures who had computed tomographic scan were enrolled including 500 patients who were divided into six groups based on the time of scanning: super early (<3 d), early (4-7 d), early-to-medium (8-14 d), medium (15-21d), medium-to-late (22d-2 months) and late stage (>2 months). The data were compared and analyzed. Forty two patients with frontal bone fractures had high-energy impact as the reason of fractures. The fracture line was clear and sharp within one week but blunt and sclerotic due to bone absorption at 2-3 weeks, and might exist for a long time. All patients had soft tissue swelling and paranasal sinus effusion at 1-2 weeks after injury. Air might gather in the adjacent soft tissues and/or intracranially within 3 days of injury if the fracture involved the frontal or other sinuses. Twelve of the 42 patients (28.6%) had intracranial hematoma, and five (11.9%) had epidural effusion. Subarachnoid hemorrhage was mostly absorbed within one week while epidural hematoma was completely absorbed over 3 weeks. Significant changes (P < 0.05) in the fracture lines, effusion of paranasal sinuses, soft tissue swelling and pneumocephalus were observed during the study period. For patients with medial orbital wall fractures, the fracture line was sharp and clear at early stages with concurrent sphenoid sinus effusion, and the fracture line became depressed 3 weeks later with disappearance of sphenoid sinus effusion. Significant changes (P < 0.05) were observed in the sharp fracture line, soft tissue swelling, sphenoid sinus effusion and smooth depression at fracture sites. For nasal fractures, the fracture line was sharp and clear at early stages with concurrent soft tissue swelling which disappeared one week later. The fracture line became smooth three weeks later. A significant (P < 0.05) difference was demonstrated in the changes of fracture line and soft tissue swelling with time. In conclusion, facial fractures have some dynamic alterations with time and identification of these characteristics may help reaching a correct clinical diagnosis with regard to fracture severity and time.


Assuntos
Ossos Faciais , Fraturas Cranianas , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Ossos Faciais/lesões , Ossos Faciais/metabolismo , Ossos Faciais/patologia , Ossos Faciais/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fraturas Cranianas/metabolismo , Fraturas Cranianas/patologia , Fraturas Cranianas/fisiopatologia , Fatores de Tempo
12.
Artigo em Inglês | MEDLINE | ID: mdl-31976849

RESUMO

BACKGROUND: Quercetin is a flavonoid which has potent anti-inflammatory, antibacterial, and antioxidant effect. Purpose of this study was to evaluate effects of quercetin on alveolar bone loss and histopathological changes in ligature-induced periodontitis in rats. METHODS: Wistar rats were divided into four experimental groups: non-ligated control (C, n=8) group; periodontitis (P, n=8) group; ligature and low dose quercetin group (75 mg/kg/day quercetin, Q75 group, n=8); ligature and high dose quercetin group (150 mg/kg/day quercetin, Q150 group, n=8). Silk ligatures were placed at gingival margin of lower first molars of mandibular right quadrant. Study duration was 15 days, and animals were sacrificed end of this period. Changes in alveolar bone levels were clinically measured and tissues were immunohistochemically examined, matrix metalloproteinase 8 (MMP 8), inducible nitric oxide synthase (iNOS), tissue inhibitor of metalloproteinase 1 (TIMP 1), Cysteine-aspartic proteases 3 (Caspase 3), and tartrate-resistant acid phosphatase (TRAP) positive osteoclast cells, osteoblast, and neutrophil counts were also determined. RESULTS AND DISCUSSION: Alveolar bone loss was highest in P group, and differences among P, Q75, and Q150 groups were significant. Both doses of quercetin decreased TRAP+ osteoclast cells and increased osteoblast cells. Inflammation in P group was also higher than those of C, Q75, and Q150 groups indicating anti-inflammatory effect of quercetin. iNOS, MMP-8, and caspase-3 levels were highest, and TIMP-1 expression was lowest in P group; differences were statistically significant. CONCLUSION: Within limits of this study, it can be suggested that quercetin administration may reduce alveolar bone loss by increasing osteoblastic activity, decreasing osteoclastic activity, apoptosis, and inflammation in an experimental model of periodontitis.


Assuntos
Perda do Osso Alveolar/tratamento farmacológico , Anti-Inflamatórios/uso terapêutico , Periodontite/tratamento farmacológico , Quercetina/uso terapêutico , Perda do Osso Alveolar/metabolismo , Perda do Osso Alveolar/patologia , Animais , Anti-Inflamatórios/farmacologia , Apoptose/efeitos dos fármacos , Modelos Animais de Doenças , Ossos Faciais/efeitos dos fármacos , Ossos Faciais/metabolismo , Ossos Faciais/patologia , Feminino , Metaloproteinase 8 da Matriz/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Osteoblastos/efeitos dos fármacos , Osteoclastos/efeitos dos fármacos , Periodontite/metabolismo , Periodontite/patologia , Quercetina/farmacologia , Ratos Wistar , Inibidor Tecidual de Metaloproteinase-1/metabolismo
13.
Ear Nose Throat J ; 99(10): 637-647, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31565991

RESUMO

The purpose of this study was to investigate the effects of craniofacial structure and nasal septal deviation on frontal sinus morphology 3-dimensionally. This study of anatomy, anthropology, morphology, and radiology included 74 dry skulls as study sample. The craniofacial measurements were made through conventional anthropometric methods by the use of calipers. The nasal septal deviation measurements were done by computerized software on photographs taken from frontal view. Frontal sinus volumes were estimated by the computerized tomography-based volumetry. The relationships between craniofacial structure, nasal septal deviation, and frontal sinus morphology were tested by linear regression and correlation analysis. The analysis of numerical variables and categorical variables within different groups was done by Mann-Whitney U/Kruskal-Wallis, and χ2 tests, respectively. There appeared a positive relationship between the dimensions of the frontal sinuses and the maximal cranial length and the nasal height especially on the left side (P < .05). However, after multivariate linear regression model for both factors was created, solely the nasal height kept being a positive factor for frontal sinus size as an independent variable. No statistical relevance was detected between the presence of metopic suture and frontal sinus morphology. Septal deviation itself affected frontal sinus morphometry, but the morphometry did not differ between the deviation side and the opposite side. In conclusion, the cranial structure does not affect the frontal sinus morphology but nasal structure affects. The true influences, among measured craniofacial elements, in relationship with the pneumatization of frontal sinus are appeared to be the nasal structure related.


Assuntos
Antropometria/métodos , Tomografia Computadorizada de Feixe Cônico/métodos , Seio Frontal/diagnóstico por imagem , Imageamento Tridimensional/métodos , Deformidades Adquiridas Nasais/diagnóstico por imagem , Adulto , Distribuição de Qui-Quadrado , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/patologia , Feminino , Seio Frontal/patologia , Humanos , Modelos Lineares , Masculino , Septo Nasal/diagnóstico por imagem , Septo Nasal/patologia , Deformidades Adquiridas Nasais/patologia , Fotografação , Crânio/diagnóstico por imagem , Crânio/patologia , Estatísticas não Paramétricas
14.
Virchows Arch ; 476(1): 159-174, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31838586

RESUMO

According to the WHO, mesenchymal tumours of the maxillofacial bones are subdivided in benign and malignant maxillofacial bone and cartilage tumours, fibro-osseous and osteochondromatous lesions as well as giant cell lesions and bone cysts. The histology always needs to be evaluated considering also the clinical and radiological context which remains an important cornerstone in the classification of these lesions. Nevertheless, the diagnosis of maxillofacial bone tumours is often challenging for radiologists as well as pathologists, while an accurate diagnosis is essential for adequate clinical decision-making. The integration of new molecular markers in a multidisciplinary diagnostic approach may not only increase the diagnostic accuracy but potentially also identify new druggable targets for precision medicine. The current review provides an overview of the clinicopathological and molecular findings in maxillofacial bone tumours and discusses the diagnostic value of these genetic aberrations.


Assuntos
Ossos Faciais/patologia , Neoplasias Maxilares/patologia , Neoplasias Cranianas/patologia , Condrossarcoma/genética , Condrossarcoma/patologia , Displasia Fibrosa Óssea/genética , Displasia Fibrosa Óssea/patologia , Granuloma de Células Gigantes/patologia , Humanos , Neoplasias Maxilares/diagnóstico , Neoplasias Maxilares/genética , Neoplasias Cranianas/diagnóstico , Neoplasias Cranianas/genética
15.
BMJ Case Rep ; 12(11)2019 Nov 25.
Artigo em Inglês | MEDLINE | ID: mdl-31772133

RESUMO

Nasal fracture accounts for over 50% of facial fractures and is a frequent presentation to ear, nose and throat emergency clinics. Optimal management of nasal injuries with deformity is by manipulation under anaesthetic and should be offered when appropriate. A healthy 27-year-old woman presented with a lateral nasal wall mass with purulent discharge 1 month following manipulation. CT imaging revealed a mass arising from fragments of the nasal bone, consistent with an abscess. Bone fragments and purulent material were initially debrided, with a subsequent formal excision of a persistent granuloma performed with an excellent cosmetic outcome. This appears to be the first description of a granuloma resulting from a closed reduction-manipulation of a nasal fracture.


Assuntos
Redução Fechada/efeitos adversos , Ossos Faciais/microbiologia , Osso Nasal/microbiologia , Fraturas Cranianas/complicações , Abscesso/diagnóstico por imagem , Abscesso/patologia , Abscesso/cirurgia , Adulto , Desbridamento/métodos , Diagnóstico Diferencial , Ossos Faciais/patologia , Traumatismos Faciais/complicações , Traumatismos Faciais/patologia , Traumatismos Faciais/cirurgia , Feminino , Granuloma/etiologia , Granuloma/patologia , Granuloma/cirurgia , Humanos , Osso Nasal/patologia , Cavidade Nasal/diagnóstico por imagem , Cavidade Nasal/patologia , Fraturas Cranianas/microbiologia , Fraturas Cranianas/cirurgia , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
16.
Niger J Clin Pract ; 22(9): 1307-1310, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31489873

RESUMO

Midfacial fracture is discontinuity of the bone affect maxilla, palate, zygomatico-maxillary complex, nasal bones, orbits, nasal-orbital-ethmoid complex, and frontal sinus. Delayed treatment can lead to malunion or nonunion bone. A 28 years old man presented with epiphora of the left eye and upgaze diplopia. There were enophthalmos, hypoglobus of the left eye, flat nasal bridge, and depressed left malar eminence. CT scan examination revealed multiple fractures of left nasal bone, left and right anterolateral wall of maxillary sinuses, left medial orbital wall and orbital floor, and left zygomatic bone. Lacrimal irrigation test showed obstruction of left nasolacrimal duct. He underwent osteotomy and fixation with plate and screw, orbital floor reconstruction with silicone block implant, external dacryocystorhinostomy with silicone tube insertion procedure. In delayed treated malunion of midfacial fracture, fixation with plate and screw after refracture using an osteotome and orbital floor reconstruction with silicone block can be a good option for restoring normal anatomy. External dacryocystorhinostomy with silicone tube insertion is an effective treatment for post traumatic nasolacrimal duct obstruction.


Assuntos
Fraturas Múltiplas/cirurgia , Obstrução dos Ductos Lacrimais/etiologia , Ducto Nasolacrimal/cirurgia , Fraturas Orbitárias/complicações , Fraturas Orbitárias/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Fraturas Zigomáticas/cirurgia , Adulto , Dacriocistorinostomia , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/patologia , Feminino , Fraturas Múltiplas/diagnóstico por imagem , Humanos , Obstrução dos Ductos Lacrimais/diagnóstico por imagem , Masculino , Maxila , Ducto Nasolacrimal/diagnóstico por imagem , Órbita , Fraturas Orbitárias/classificação , Fraturas Orbitárias/diagnóstico por imagem , Osteotomia , Procedimentos de Cirurgia Plástica/efeitos adversos , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Fraturas Zigomáticas/complicações , Fraturas Zigomáticas/diagnóstico por imagem
17.
Front Immunol ; 10: 1664, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31379856

RESUMO

The maxillofacial skeleton is highly dynamic and requires a constant equilibrium between the bone resorption and bone formation. The field of osteoimmunology explores the interactions between bone metabolism and the immune response, providing a context to study the complex cellular and molecular networks involved in oro-maxillofacial osteolytic diseases. In this review, we present a framework for understanding the potential mechanisms underlying the immuno-pathobiology in etiologically-diverse diseases that affect the oral and maxillofacial region and share bone destruction as their common clinical outcome. These otherwise different pathologies share similar inflammatory pathways mediated by central cellular players, such as macrophages, T and B cells, that promote the differentiation and activation of osteoclasts, ineffective or insufficient bone apposition by osteoblasts, and the continuous production of osteoclastogenic signals by immune and local stromal cells. We also present the potential translational applications of this knowledge based on the biological mechanisms involved in the inflammation-induced bone destruction. Such applications can be the development of immune-based therapies that promote bone healing/regeneration, the identification of host-derived inflammatory/collagenolytic biomarkers as diagnostics tools, the assessment of links between oral and systemic diseases; and the characterization of genetic polymorphisms in immune or bone-related genes that will help diagnosis of susceptible individuals.


Assuntos
Alergia e Imunologia , Ossos Faciais/imunologia , Ossos Faciais/patologia , Doenças da Boca/imunologia , Doenças da Boca/patologia , Patologia Bucal , Ossos Faciais/metabolismo , Humanos , Doenças da Boca/metabolismo , Pesquisa Translacional Biomédica
18.
Br J Oral Maxillofac Surg ; 57(7): 688-690, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31202510

RESUMO

Osteonecrosis of the jaw (ONJ) is a rare, but severe, condition that has traditionally been associated with the use of bisphosphonates. We report what is, to our knowledge, the first case of ONJ secondary to the use of everolimus, in the absence of treatment with bisphosphonates in a 65-year-old man who was given it for immunosuppression after a renal transplant. After 18 months of treatment, he was diagnosed with severe ONJ and underwent radical debridement of the palate and complete dental clearance of the maxilla.


Assuntos
Everolimo/efeitos adversos , Imunossupressores/efeitos adversos , Arcada Osseodentária/patologia , Osteonecrose/induzido quimicamente , Idoso , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/patologia , Humanos , Masculino , Maxila/diagnóstico por imagem , Palato/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
19.
Am J Surg Pathol ; 43(6): 819-826, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30998511

RESUMO

Maxillofacial central giant cell lesions (CGCLs) are often locally aggressive tumors in young patients that may be histologically very similar to or quite distinct when compared with giant cell tumors (GCTs) of long bones. It has been well established that GCTs express high levels of receptor activator of nuclear factor-kappa B ligand (RANKL) and are amenable to treatment with denosumab. To assess the predictive value of morphology, we evaluated CGCLs with GCT-like or non-GCT-like histology for RANKL expression by RNA in situ hybridization. Tumors were classified by clinical and radiographic criteria as aggressive or nonaggressive and histopathologically as resembling GCT or non-GCT-like. RNA in situ hybridization for RANKL mRNA was performed and scored semiquantitatively based on the magnification at which the signal was first detected. There were 17 patients (M:F=8:9) with a median age of 15 years. Nine patients were children under 18 years of age. In 10 patients, tumors were characterized as GCT-like and in 7, non-GCT-like; 6 occurred in the setting of a known associated syndrome. Of the sporadic tumors, 9/11 (82%) were classified as aggressive. Fifteen of 17 (88%) tumors strongly expressed RANKL (8/9 aggressive, 2/2 nonaggressive; 10/10 GCT-like and 5/7 non-GCT-like). Two patients with clinically aggressive CGCL, GCT-like histology and high tumor RANKL expression were identified as candidates for a trial of denosumab with notable clinical response. CGCLs demonstrate strong and diffuse RANKL mRNA expression in mononuclear stromal cells, regardless of histology or presence of an associated syndrome. Denosumab may be clinically beneficial in aggressive CGCLs.


Assuntos
Biomarcadores Tumorais/genética , Neoplasias Ósseas/genética , Ossos Faciais/patologia , Tumor de Células Gigantes do Osso/genética , Hibridização In Situ , Ligante RANK/genética , Neoplasias Cranianas/genética , Adolescente , Adulto , Antineoplásicos/uso terapêutico , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/patologia , Criança , Pré-Escolar , Denosumab/uso terapêutico , Ossos Faciais/diagnóstico por imagem , Ossos Faciais/efeitos dos fármacos , Feminino , Predisposição Genética para Doença , Tumor de Células Gigantes do Osso/diagnóstico por imagem , Tumor de Células Gigantes do Osso/tratamento farmacológico , Tumor de Células Gigantes do Osso/patologia , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Fenótipo , Neoplasias Cranianas/diagnóstico por imagem , Neoplasias Cranianas/tratamento farmacológico , Neoplasias Cranianas/patologia , Resultado do Tratamento , Adulto Jovem
20.
JAMA Facial Plast Surg ; 21(4): 292-297, 2019 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-30946440

RESUMO

IMPORTANCE: Facial skeletal changes that occur with aging have critical importance to the aesthetics of the aging face and the field of facial rejuvenation. Patterns of bony change may differ based on race, but existing research is limited primarily to white or unspecified racial populations. OBJECTIVE: To longitudinally document patterns of facial skeletal change among black individuals. DESIGN, SETTING, AND PARTICIPANTS: This retrospective case series study evaluated the medical records of patients treated at an urban tertiary medical center and with at least 2 facial computed tomographic (CT) images obtained at least 6 years apart between 1973 and 2017. All patients were self-identified black adults initially aged 40 to 55 years with no history of facial surgery who required repeated facial CT imaging that included the entire midface and cranium. All data analysis took place between August 1, 2018, and October 31, 2018. MAIN OUTCOMES AND MEASURES: Facial CT scans were analyzed for 2-dimensional measurements to document changes in glabellar angle, bilateral maxillary angles, frontozygomatic junction width, orbital width, and piriform width. RESULTS: A total of 20 patients were included in our analysis (6 men, 14 women). The patients' mean (SD) initial age was 46.8 (5.8) years, with a mean (SD) follow-up of 10.7 (2.9) years. There was a significant increase in mean (SD) piriform aperture width from 3.24 (0.37) cm to 3.31 (0.32) cm (P = .002) and mean (SD) female orbital width from 3.77 (0.25) cm to 3.84 (0.19) cm (P = .04). There was a significant decrease in mean (SD) frontozygomatic junction width from 5.46 (1.38) mm to 5.24 (1.42) mm (P < .001). No significant differences were found in glabellar angles, maxillary angles, or male orbital width between initial and final imaging time points. CONCLUSIONS AND RELEVANCE: This study is the first to our knowledge to document longitudinal bony changes of the face among a population of black individuals. Although significant facial skeletal changes can be observed over an average 10-year period, they are minor in comparison to previously published data among whites. This study suggests that there may be significant differences in facial bony aging between races which may have an impact on the aesthetics of aging and hold implications for facial rejuvenation. LEVEL OF EVIDENCE: NA.


Assuntos
Negro ou Afro-Americano , Ossos Faciais/patologia , Adulto , Fatores Etários , Ossos Faciais/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
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