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1.
Gen Dent ; 72(1): 43-45, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38117640

RESUMO

The odontoma is regarded as a hamartomatous process of the jaws. Most are discovered as an incidental radiographic finding, averaging 15 mm in size. This report describes a case of a diminutive odontoma that was surgically removed before the onset of eruptive and pathologic consequences. A compilation of documented complications and syndromes associated with odontomas is also presented.


Assuntos
Odontoma , Criança , Humanos , Odontoma/diagnóstico por imagem , Odontoma/cirurgia , Erupção Dentária
2.
Gen Dent ; 72(5): 27-30, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39151078

RESUMO

The objective of this article is to report the clinical case and 4-year follow-up of a 5-year-old child with multiple dental anomalies, emphasizing the importance of early diagnosis and use of combined pediatric surgery and orthodontic approaches. A 5-year-old boy, accompanied by his mother, sought dental care for dental caries and tooth pain. Clinical and radiographic examinations revealed active caries, a supernumerary primary tooth in the region of the mandibular right second premolar, and severe ankylosis of the primary mandibular right second molar. The treatment plan involved extraction of the supernumerary tooth as well as sectioning and extraction of the ankylosed molar. When the patient was 6 years old, the permanent mandibular right first molar showed signs of an altered eruptive process, and orthodontic treatment was initiated. A unilateral band-and-loop space maintainer with coil springs designed to move the permanent first molar was placed on the primary first molar. A new panoramic radiograph, obtained when the patient was aged 7 years, suggested the presence of an odontoma in the apical region of the primary maxillary right canine. Surgical removal and histopathologic examination of the lesion confirmed that it was a developing odontoma. After surgery, due to occlusal anomalies that included transverse maxillary deficiency, deep overbite, and midline deviation, the patient underwent rapid maxillary expansion therapy with a Haas-type appliance. When the patient was 8 years old, orthodontic treatment continued with a removable palatal Hawley expander and a orthodontic mandibular lingual arch. Currently, at the age of 9 years, the child is still undergoing fixed orthodontic treatment after surgical exposure of the impacted permanent maxillary right canine and bonding of an orthodontic attachment to enable traction. A multidisciplinary approach to the management of dental anomalies promotes a favorable prognosis and ensures comprehensive treatment of young patients.


Assuntos
Dente Supranumerário , Humanos , Masculino , Pré-Escolar , Dente Supranumerário/cirurgia , Dente Supranumerário/diagnóstico por imagem , Seguimentos , Odontoma/cirurgia , Odontoma/diagnóstico , Extração Dentária , Anquilose Dental/cirurgia , Anquilose Dental/terapia , Cárie Dentária/terapia , Cárie Dentária/cirurgia , Dente Molar/anormalidades , Anormalidades Dentárias/terapia , Equipe de Assistência ao Paciente , Mantenedor de Espaço em Ortodontia , Criança , Radiografia Panorâmica , Dente Decíduo/anormalidades , Dente Pré-Molar/anormalidades
3.
Medicina (Kaunas) ; 60(8)2024 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-39202528

RESUMO

Odontomas are benign tumors characterized by slow and limited growth with a rare recurrence. Odontomas are generally detected by radiographic findings in the radiopaque stage, where calcification of the tissues is observed. This article seeks to report the recurrence of a radiologically diagnosed odontoma to show the importance of radiographic controls after enucleation as a diagnostic and follow-up method. Case report: A female patient, 9 years old, attended dental care in 2020 due to malpositioned teeth. In the intraoral clinical examination, she presented stage II mixed dentition with crowding. A radiographic exam showed no associated lesions. The patient reported a history of odontoma removal and a supernumerary tooth in sextant II in 2016. Subsequently, she was referred to orthodontics, where permanent dentition with moderate anterior crowding in the maxilla and mandible was observed. The radiographic examination showed a radiopaque area compatible with odontoma, palatal to teeth 12 and 13. Conclusions: Although recurrence is rare, complete removal in the case of an odontoma is critical. This study demonstrates the importance of performing radiographic controls 5 years after enucleation of an odontoma, considering the stages of evolution.


Assuntos
Odontoma , Humanos , Feminino , Odontoma/cirurgia , Odontoma/diagnóstico por imagem , Criança , Seguimentos , Recidiva Local de Neoplasia/diagnóstico por imagem , Recidiva Local de Neoplasia/cirurgia
4.
Fetal Pediatr Pathol ; 42(2): 281-284, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35748698

RESUMO

Introduction: Ameloblastic fibro-odontoma (AFO) is a benign odontogentic tumor without an aggressive behavior, unlike the similar ameloblastic fibroma. Case Presentation: A 9-year-old boy, with tooth eruption failure, underwent enucleation and curettage of a well-defined variable radiolucent and radio-opaque right mandible lesion. There was odontogenic epithelium with peripheral palisading in a loose myxoid stroma as well as a disorganized component of dentin, enamel, and cementum, features of an AFO. Conclusion: AFO is an odontogenic mixed tumor of epithelium and mesenchyme.


Assuntos
Neoplasias Mandibulares , Odontoma , Masculino , Humanos , Criança , Odontoma/diagnóstico , Odontoma/cirurgia , Neoplasias Mandibulares/diagnóstico , Neoplasias Mandibulares/cirurgia , Neoplasias Mandibulares/patologia , Epitélio/patologia , Cabeça/patologia , Tecido Conjuntivo/patologia
5.
J Clin Pediatr Dent ; 47(1): 67-73, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36627222

RESUMO

This study aimed to identify the frequency of complications during the diagnosis, observation, and treatment of supernumerary teeth or odontomas and evaluate the relationship between complications and the timing of surgical intervention. This study was conducted based on data from the Korea Health Insurance Review and Assessment Service between January 2008 and December 2019. A 2-year washout period was applied, and a follow-up period of at least 2 years was also included. During the observation period, the age at diagnosis of supernumerary teeth and odontomas was analyzed using major diagnostic codes, and the treatment codes were used to determine the interval between diagnosis and surgical intervention. The incidence rates of supernumerary teeth (1.21%) and odontomas (0.36%) were comparable to that reported in previous studies. The frequency of supernumerary teeth was the highest in the anterior region, followed by the premolar and molar regions. The average ages at diagnosis according to the location of the supernumerary teeth were 7.25, 13.98, and 16.11 years in the anterior, premolar, and molar regions, respectively. The age at diagnosis correlated with the maturity period of the teeth at the corresponding location. For the supernumerary tooth group, surgical intervention was more likely to occur when malocclusion (p < 0.0001) or tooth eruption disturbances (p < 0.0001) were present or dentigerous cysts were absent (p = 0.006). For the odontoma group, malocclusion (p = 0.251) was not correlated with surgical intervention. When tooth eruption disturbances (p = 0.002) and dentigerous cysts (p < 0.0001) were present, surgical intervention was more likely to occur. Pediatric dentists should conduct timely clinical checks and periodic follow-ups to prevent complications and unnecessary orthodontic treatments in patients with supernumerary teeth or odontomas.


Assuntos
Cisto Dentígero , Má Oclusão , Odontoma , Dente Impactado , Dente Supranumerário , Criança , Humanos , Dente Supranumerário/epidemiologia , Dente Supranumerário/cirurgia , Dente Impactado/terapia , Odontoma/epidemiologia , Odontoma/cirurgia , Cisto Dentígero/complicações , Má Oclusão/complicações , Seguro Saúde , República da Coreia/epidemiologia
6.
J Zoo Wildl Med ; 53(3): 600-604, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36214246

RESUMO

Pseudo-odontoma can occur in some species with elodont teeth. Pseudo-odontomas affecting maxillary dentition may result in obstruction of the nasal cavities and lead to dyspnea. Effective treatments for the disease in Richardson's ground squirrels (Urocitellus richardsonii) have not yet been established. Three Richardson's ground squirrels exhibiting dyspnea and with maxillary pseudo-odontomas, based on diagnostic imaging, were surgically treated. The animals were placed under general anesthesia, and following excision of skin and subcutaneous tissue at the midpoint of the line connecting the medial canthus and ipsilateral nasal opening, maxillotomy of the incisive bone was performed. The reserve crown of the maxillary incisor tooth was exposed via the maxillotomy site and was sectioned into labial and palatal fragments, and the diseased tooth was completely extracted. In all three cases, dyspnea improved immediately after surgery. In one case, no recurrence was observed 600 d following surgery. These results suggest that the procedure used provides a practical approach for treating maxillary pseudo-odontomas in Richardson's ground squirrels.


Assuntos
Odontoma , Doenças dos Roedores , Animais , Dispneia/veterinária , Odontoma/cirurgia , Odontoma/veterinária , Sciuridae
7.
J Clin Pediatr Dent ; 46(2): 148-151, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35533231

RESUMO

We report a rare case of dentinogenic ghost cell tumor (DGCT) associated with complex composite odontoma in a 17 years male affecting the posterior segment of the mandible. On radiographic examination, there was a well-defined multilocular radiolucency surrounding the radio opaque mass with respect to 44, 45 and 46. Histopathologically it showed ameloblastomatous proliferation with dentin like areas and ghost cells. It was associated with tooth like structures consisting of dentin, cementum and pulp like areas. DGCT with odontoma is extremely rare with only two cases being reported in literature till date. The management with its rare occurrence is discussed here.


Assuntos
Ameloblastoma , Tumores Odontogênicos , Odontoma , Humanos , Masculino , Tumores Odontogênicos/diagnóstico por imagem , Tumores Odontogênicos/cirurgia , Odontoma/complicações , Odontoma/diagnóstico por imagem , Odontoma/cirurgia
8.
West Afr J Med ; 38(9): 903-906, 2021 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-34677920

RESUMO

INTRODUCTION: Odontomas are the most common odontogenic tumors worldwide and are usually chance findings seen on routine dental examinations. However, on progression, they may be associated with adjacent tooth displacement. CASE DESCRIPTION: We report a case of an 11-year-old girl who presented at the Lagos University Teaching Hospital (LUTH) pediatric dental clinic with a complaint of painless enlargement of the left anterior maxilla of 2-years duration. The swelling was located between teeth 21 and 22 and was associated with distal displacement and mesial angulation of tooth 22. Clinical, radiographic and histopathologic investigations revealed a compound odontoma. Surgical exposure and enucleation was done to remove the tumor. The patient's postoperative course and 6 months follow-up were uneventful. CONCLUSION: This report elucidates the importance of routine dental check-ups and minimally traumatic management of odontomas in pediatric dental patients to prevent adverse effects of odontomas, thereby, minimizing the interventions needed after surgical enucleation.


INTRODUCTION: Les odontomes sont les tumeurs odontogènes les plus courantes dans le monde et sont habituellement des découvertes fortuites observées lors des examens dentaires de routine. Cependant, lors de leur progression, ils peuvent être associés à un déplacement des dents adjacentes. DESCRIPTION DU CAS: Nous rapportons le cas d'une jeune fille de 11 ans qui s'est présentée à la clinique dentaire pédiatrique du Lagos University Teaching Hospital (LUTH) pour se plaindre d'un élargissement indolore du maxillaire antérieur gauche depuis deux ans. Le gonflement était situé entre les dents 21 et 22 et était associé à un déplacement distal et à une angulation mésiale de la dent 22. Les examens cliniques, radiographiques et histopathologiques ont révélé un odontome composé. Une exposition chirurgicale et une énucléation ont été effectuées pour retirer la tumeur. L'évolution postopératoire du patient et son suivi à 6 mois se sont déroulés sans incident. CONCLUSION: Ce rapport met en évidence l'importance des contrôles dentaires de routine et de la prise en charge des odontomes par des moyens peu traumatisants chez les patients pédiatriques afin de prévenir les effets indésirables des odontomes et de minimiser ainsi les interventions nécessaires après l'énucléation chirurgicale. Mots clés: Odontome composé, maxillaire antérieur, incisive latérale déplacée.


Assuntos
Odontoma , Criança , Feminino , Hospitais de Ensino , Humanos , Incisivo/diagnóstico por imagem , Incisivo/cirurgia , Maxila/diagnóstico por imagem , Maxila/cirurgia , Nigéria , Odontoma/diagnóstico por imagem , Odontoma/cirurgia
9.
J Contemp Dent Pract ; 22(9): 1060-1062, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-35000953

RESUMO

AIM: To report a delayed tooth eruption following late surgical removal of a compound odontoma in a 10-year-old child. BACKGROUND: Odontomas are the most common odontogenic tumors. They are usually asymptomatic and discovered during routine radiographic examinations or during an assessment of delayed tooth eruption. Odontomas are classified into compound or complex based on the microscopic structure of dental tissues. Early diagnosis and surgical removal of odontomas is the keyword for favorable results. CASE DESCRIPTION: This paper describes a case of compound odontomas in a 10-year-old boy that prevented eruption of the permanent mandibular lateral incisor. Extraction of mandibular primary lateral incisors and surgical excision of the compound odontomas was performed. After 3 years of follow-up, at the age of 13 years, the permanent lateral incisor erupted and approached the occlusal plane. CONCLUSION: Late surgical removal of odontomas resulted in a delayed eruption of the affected teeth. CLINICAL SIGNIFICANCE: Surgical removal of odontomas and regular follow-up to monitor the eruption of the affected teeth should be considered for the teeth with an open apex before considering orthodontic traction.


Assuntos
Odontoma , Dente Impactado , Adolescente , Criança , Oclusão Dentária , Humanos , Incisivo/diagnóstico por imagem , Masculino , Odontoma/complicações , Odontoma/diagnóstico por imagem , Odontoma/cirurgia , Erupção Dentária , Dente Impactado/diagnóstico por imagem , Dente Impactado/cirurgia
10.
Acta Clin Croat ; 60(1): 146-152, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34588736

RESUMO

Odontomas are benign odontogenic tumors formed from epithelial and mesenchymal cells. They are mostly associated with disorders of tooth eruption, causing impaction and/or delayed tooth eruption, and are an accidental finding on routine radiological examination. The aim of this paper is to present current findings in the etiology and treatment of odontomas, as well as the clinical and radiographic features, describing a case that is rarely found in the literature. A case of multiple complex odontoma in the mandible of an 11-year-old boy is presented, causing impaction of the first permanent right molar, 46. The treatment consisted of surgical enucleation of the multiple complex odontoma with preservation of the impacted tooth, monitoring clinically and radiologically its spontaneous eruption followed by final orthodontic alignment. Odontomas are not an everyday part of clinical practice and given that they are most commonly associated with permanent tooth impaction, it is extremely important to have knowledge of their clinical and radiological features. Early diagnostics and appropriate treatment result in better diagnosis, thus increasing the possibility of preserving the impacted teeth.


Assuntos
Odontoma , Dente Impactado , Criança , Humanos , Masculino , Odontoma/diagnóstico por imagem , Odontoma/cirurgia , Radiografia , Dente Impactado/diagnóstico por imagem , Dente Impactado/cirurgia , Resultado do Tratamento
11.
J Cutan Pathol ; 47(8): 720-724, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32134132

RESUMO

Peripheral odontoma is a very rare odontogenic hamartoma arising in soft tissues. Here, we report a case of peripheral odontoma in a pediatric patient and review the cases published in the literature. An 11-year-old male patient presented a nodular lesion in the anterior region of the palate for over 1 year. Under the clinical hypothesis of fibroma, an excisional biopsy was performed. Histopathological examination revealed the presence of tooth-like structures, formed by enamel, and dentin matrix, occasionally associated with the dental papilla and surrounding pulp tissue, thus, the histopathological diagnosis of peripheral odontoma was established. The patient has been undergoing follow-up for 6 months without any signs of lesion recurrence. Peripheral odontomas are uncommon lesions that usually affect young patients and display a preference for the maxilla and limited growth potential. The recognition of the clinical and histopathological features of the peripheral odontoma is indispensable for the establishment of its diagnosis.


Assuntos
Hamartoma/patologia , Odontoma/diagnóstico , Palato/patologia , Anormalidades Dentárias/patologia , Adolescente , Adulto , Biópsia/métodos , Criança , Pré-Escolar , Feminino , Fibroma/diagnóstico , Seguimentos , Humanos , Lactente , Masculino , Margens de Excisão , Odontoma/cirurgia , Resultado do Tratamento
12.
Gerodontology ; 37(4): 411-415, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33179813

RESUMO

OBJECTIVE: This report discusses the clinical relevance of a novel case of an odontoma and transmigrated canine in the setting of florid cemento-osseous dysplasia (COD), hypercementosis and moderate to severe periodontitis in a 66-year-old patient. BACKGROUND: An odontoma may infrequently impede tooth eruption and rarely has been implicated with canine transmigration. COD is a benign fibro-osseous lesion associated with decreased vascularity and poorer surgical intervention. MATERIALS AND METHODS: A partially edentulous woman, in no acute distress, underwent clinical and radiographic evaluation in pursuit of comprehensive dental care. RESULTS: Radiographic assessment demonstrated multiple occult pathologies of the mandible, including compound odontoma, canine transmigration, florid COD, hypercementosis and moderate to severe periodontitis, a concurrence thought to be previously unreported. Furthermore, the presence of the odontoma and transmigrated canine is apparently the second reported case in the geriatric population. CONCLUSIONS: The attending clinician should carefully weigh removal of an impacted and transmigrated canine associated with an odontoma in the setting of COD and compromised bone, particularly in older individuals. When surgical intervention is deferred in these clinical situations, patients should continue to be monitored for clinical and radiographic development of pathologic processes.


Assuntos
Displasia Fibrosa Óssea , Odontoma , Dente Impactado , Idoso , Dente Canino/diagnóstico por imagem , Feminino , Humanos , Mandíbula , Odontoma/complicações , Odontoma/diagnóstico por imagem , Odontoma/cirurgia , Dente Impactado/diagnóstico por imagem , Dente Impactado/cirurgia
13.
J Craniofac Surg ; 29(5): e444-e449, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29521762

RESUMO

For young growing children before the end of skeletal maturity, the growth activity of the grafted bone after hemimandibulectomy is not well-known. After an adolescence, such a patient may have facial deformity because the anterior growth point of the mandible is in the condylar neck. A 13-year-old boy was performed hemimandibulectomy with immediate mandibular reconstruction by fibula free flap (FFF) because of a huge ameloblastic fibroma. The authors evaluated the length of FFF on the images of computed tomography (CT) at 5 and 60 months after the operation and compared them by calculating growth rates. Five years after surgery, his facial appearance was symmetry and mandibular function was satisfaction. Although the mandibular bone in the contralateral side grew during 5-year follow-up, the vascularized FFF grafted in the child patient did not significantly grow. Moreover, spontaneous regeneration (SR) and the gradual osteosclerosis were confirmed on the left distal edge of the FFF on the CT imaging. The arrival of SR at the left distal edge of the FFF was considered a part of the reason to compensate the unchanging growth rate of the grafted FFF and contribute for the postoperative good functional and esthetic results.


Assuntos
Transplante Ósseo/métodos , Fíbula/irrigação sanguínea , Fíbula/transplante , Neoplasias Mandibulares/cirurgia , Osteotomia Mandibular , Reconstrução Mandibular/métodos , Odontoma/cirurgia , Adolescente , Estética Dentária , Fíbula/crescimento & desenvolvimento , Seguimentos , Humanos , Imageamento Tridimensional , Masculino , Neoplasias Mandibulares/diagnóstico por imagem , Modelos Dentários , Odontoma/diagnóstico por imagem , Osseointegração/fisiologia , Complicações Pós-Operatórias/diagnóstico por imagem , Tomografia Computadorizada por Raios X
14.
J Clin Pediatr Dent ; 42(6): 458-460, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30085878

RESUMO

Ameloblastic fibro-odontoma (AFO) is a rare benign odontogenic tumor with the histologic features of ameloblastic fibroma (AF) but also contains enamel and dentin. It is most commonly observed in the pediatric population. Distinction between AFO and AF becomes important as ameloblastic fibromas are associated with higher recurrence rates of up to 18%, and 35% of these recurrent lesions can undergo malignant transformation to ameloblastic fibrosarcoma. Hence, for amelobastic fibroma, conservative curettage is recommended for the initial lesion and marginal resection is considered for recurrent cases. In contrast, AFO can be treated with simple curettage and the recurrence rate is approximately seven percent. Malignant transformation of AFO is exceedingly rare. Therefore, the treatment and prognosis differs for these two histologically similar neoplasms. We present a case of a 17-year-old boy who was initially diagnosed with ameloblastic fibroma upon biopsy, with subsequent curettage specimen showing AFO, which carries a better prognosis.


Assuntos
Neoplasias Mandibulares/patologia , Odontoma/patologia , Adolescente , Curetagem , Humanos , Masculino , Neoplasias Mandibulares/diagnóstico por imagem , Neoplasias Mandibulares/cirurgia , Odontoma/diagnóstico por imagem , Odontoma/cirurgia
16.
J Oral Maxillofac Surg ; 75(9): 1827-1832, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28460214

RESUMO

Compound odontomas are common odontogenic tumors associated with permanent tooth impaction in the premaxilla. This report describes the case of a 14-year-old girl with an odontoma-associated impaction over the premaxilla that was treated using autotransplantation to satisfy an immediate esthetic demand. At postoperative follow-up conducted in the 14th month, a satisfactory cosmetic appearance with a healthy periodontal status was observed. In addition, the authors discuss the possible complications of autotransplantation and different treatment strategies for odontoma-associated impaction and for correcting bone defects in this case report. Autotransplantation for treating odontoma-associated impaction can be an alternative solution for satisfying an immediate cosmetic demand and providing a favorable outcome.


Assuntos
Estética , Neoplasias Maxilares/complicações , Odontoma/complicações , Dente Impactado , Dente/transplante , Adolescente , Feminino , Humanos , Neoplasias Maxilares/diagnóstico por imagem , Neoplasias Maxilares/cirurgia , Odontoma/diagnóstico por imagem , Odontoma/cirurgia , Radiografia Panorâmica , Dente/diagnóstico por imagem , Dente Impactado/diagnóstico por imagem , Dente Impactado/cirurgia , Transplante Autólogo
17.
J Craniofac Surg ; 28(8): e737-e738, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28922246

RESUMO

The aim of the authors was to report a clinical case about immediate implant placement after the removal of complex odontoma. A 35-year-old female patient presented to private service complaining about absence of lower right first premolar. The computed tomographic showed radiopaque attenuation, surrounded by a narrow radiolucency in the area of dental absence, suggesting a mineralized lesion. The surgical removal of lesion was performed by intraoral access with general anesthesia and the implant of 3.75 × 10 mm (Neodent) was placed with the aid of a surgical guide, following the drill sequence established by the manufacturer. No complications were observed after 1 year with the prosthetic rehabilitation.


Assuntos
Implantação Dentária Endóssea/métodos , Implantes Dentários , Prótese Dentária Fixada por Implante/métodos , Odontoma , Procedimentos Cirúrgicos Bucais , Adulto , Feminino , Humanos , Odontoma/patologia , Odontoma/cirurgia , Procedimentos Cirúrgicos Bucais/métodos , Procedimentos Cirúrgicos Bucais/reabilitação , Tempo para o Tratamento , Resultado do Tratamento
18.
Acta Vet Hung ; 65(1): 89-95, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28244329

RESUMO

A 13-year-old male cat presented with an ill-defined mass in the rostral mandible causing destruction and loss of alveolar bone. Microscopically, the mass consisted of cords or islands of benign odontogenic epithelium and a malignant, pleomorphic spindle-shaped cell component with dysplastic dentine formation. Immunohistochemically, neoplastic mesenchymal cells proved to be strongly positive for vimentin and negative for cytokeratins, desmin, actin and S100 protein; the Ki67 proliferation index was high. Morphological and immunohistochemical features largely overlap those reported for ameloblastic fibrodentinosarcoma, an uncommon histologic subtype of odontogenic sarcoma recognised in humans but no reported previously in animals. Ki-67 expression assessment may help to discriminate between malignant and benign forms of odontogenic tumours but the final diagnosis is mainly morphological.


Assuntos
Doenças do Gato/diagnóstico , Neoplasias Mandibulares/veterinária , Odontoma/veterinária , Animais , Doenças do Gato/patologia , Doenças do Gato/cirurgia , Gatos , Masculino , Neoplasias Mandibulares/diagnóstico , Neoplasias Mandibulares/patologia , Neoplasias Mandibulares/cirurgia , Odontoma/diagnóstico , Odontoma/patologia , Odontoma/cirurgia
19.
Eur J Paediatr Dent ; 18(1): 77-79, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28494609

RESUMO

BACKGROUND: Odontomas are the most common benign odontogenic tumors (especially in children and adolescents) and consist of odontogenic ectomesenchyma and odontogenic epithelium with the formation of dental hard tissues. They are also simply considered hamartomas. The WHO Classification defines them as complex and compound odontomas. The diagnosis is often occasional, in conjunction with x-ray routine examinations, or it is suggested by eruption disorders or abnormal position of teeth in the dental arch. The mainstay therapy is surgical excision of the lesion followed by orthodontic treatment to take in the arch the impacted teeth. CASE REPORT: The aim of this work is the presentation of a case of mandibular bilateral compound odontoma in a young patient, and the confocal laser scanning microscopic analysis of the surgical specimens.


Assuntos
Neoplasias Mandibulares/patologia , Neoplasias Mandibulares/cirurgia , Microscopia Confocal , Odontoma/patologia , Odontoma/cirurgia , Criança , Humanos , Masculino , Neoplasias Mandibulares/diagnóstico , Odontoma/diagnóstico , Radiografia Panorâmica
20.
Gen Dent ; 65(6): 69-72, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29099370

RESUMO

An ameloblastic fibro-odontoma (AFO) is a rare mixed odontogenic tumor with histologic features of an ameloblastic fibroma in conjunction with the presence of dentin and enamel. It usually appears as a well-circumscribed radiolucency with radiopaque foci and slow growth and is commonly seen in children and young adults. A 13-year-old boy presented with an asymptomatic swelling in the posterior right region of the mandible and the right ascending ramus. The clinical, imaging, and histopathologic findings confirmed the diagnosis of an AFO. After 8 months, a radiolucent lesion involving the unerupted mandibular left third molar was observed; a final diagnosis of a dentigerous cyst (DC) was established for this lesion. Although coincidental events, metachronous odontogenic lesions suggest a possible common genetic origin, since both can be caused by related cellular signaling pathways. Complete enucleation is recommended for both AFOs and DCs; rates of recurrence are low.


Assuntos
Ameloblastoma/diagnóstico , Cisto Dentígero/diagnóstico , Neoplasias Mandibulares/diagnóstico , Segunda Neoplasia Primária/diagnóstico , Tumores Odontogênicos/diagnóstico , Odontoma/diagnóstico , Adolescente , Ameloblastoma/patologia , Ameloblastoma/cirurgia , Cisto Dentígero/patologia , Cisto Dentígero/cirurgia , Diagnóstico por Imagem , Humanos , Masculino , Neoplasias Mandibulares/patologia , Neoplasias Mandibulares/cirurgia , Segunda Neoplasia Primária/patologia , Segunda Neoplasia Primária/cirurgia , Tumores Odontogênicos/patologia , Tumores Odontogênicos/cirurgia , Odontoma/patologia , Odontoma/cirurgia
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