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1.
J Ultrasound Med ; 2020 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-32083349

RESUMO

OBJECTIVES: The purpose of this study was to investigate the contribution of strain index measurements and a 5-point scoring method to diagnostic accuracy in differential diagnosis of benign and malignant solid breast masses and to compare the diagnostic performances of both methods. METHODS: Eighty female patients were included in this study. Before biopsy, all patients underwent ultrasound (US) and sonoelastographic examinations. The elastographic images of lesions were assessed according to the 5-point scoring method, and then elasticity scores were determined. Strain values of the masses and subcutaneous adipose tissue were measured. The diagnostic efficacies of B-mode US, sonoelastographic 5-point scoring, and strain index methods were compared with histopathologic findings. RESULTS: The mean age of the patients ± SD was 42 ± 13 years (range, 14-81 years). In histopathologic evaluations, 59 (74%) lesions were diagnosed as benign, and 21 (26%) were diagnosed as malignant. The mean strain index values were 10.45 ± 7.04 (range, 3.4-25.1) in malignant lesions and 2.88 ± 2.5 (range, 0.5-19.81) in benign lesions. The mean strain index for malignant lesions was significantly higher than that for benign lesions (P < .05). The highest sensitivity was found for B-mode US, and the highest specificity was found for the strain index. The diagnostic performance of the strain index was higher than that of the 5-point scoring method. CONCLUSIONS: The addition of a sonoelastographic examination to B-mode US prevents unnecessary biopsies. The strain index was found to be superior to the 5-point scoring method to a limited extent.

2.
World Neurosurg ; 121: e140-e146, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30240854

RESUMO

OBJECTIVE: To investigate key anatomic features of the vidian canal that have a critical role in planning and performing endoscopic skull base surgeries. METHODS: We reviewed skull base computed tomographic images of 640 consecutive subjects. Studies were analyzed in axial, coronal and sagittal planes. RESULTS: The mean (±SD) length of the vidian canal was 15.4 ± 2.0 mm in female subjects and 16.6 ± 1.7 mm in male subjects, and the difference between genders was statistically significant (P < 0.001). The most common rostral-caudal course of the vidian canal was medial to lateral and was followed by the straight course, tortuous course, and lateral-to-medial course. The frequency of pneumatization pattern from most common to least common was types 0, III, II and I. Of 342 evaluated sides, the vidian canal was located below the level of the anterior genu of petrous ICA in 303 (89%) sides, at same level with the anterior genu of petrous ICA in twenty-five(7%) sides, and above the level of the anterior genu of petrous ICA in fourteen(4.1%) sides. CONCLUSIONS: A variety of previously undefined features of the vidian canal that can alter the course of surgical procedure were defined. The position of the vidian canal with respect to the petrous internal carotid artery (ICA) was extensively described. From a surgical standpoint, a working room inferior and medial to the vidian canal might not always be a safe approach, because the vidian canal could be located superior to the level of the anterior genu of petrous ICA according to our findings in the present study.


Assuntos
Artéria Carótida Interna/anatomia & histologia , Base do Crânio/anatomia & histologia , Adolescente , Adulto , Idoso , Artéria Carótida Interna/diagnóstico por imagem , Cavidades Cranianas/anatomia & histologia , Cavidades Cranianas/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada Multidetectores , Neuroendoscopia/métodos , Procedimentos Neurocirúrgicos/métodos , Estudos Retrospectivos , Caracteres Sexuais , Base do Crânio/irrigação sanguínea , Base do Crânio/diagnóstico por imagem , Base do Crânio/cirurgia , Osso Esfenoide/anatomia & histologia , Osso Esfenoide/diagnóstico por imagem , Seio Esfenoidal/anatomia & histologia , Seio Esfenoidal/diagnóstico por imagem , Adulto Jovem
4.
Radiol Case Rep ; 13(2): 516-521, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29904503

RESUMO

Arachnoid cysts are one of the most frequently encountered intracranial space-occupying lesions in daily neurosurgery and neuroradiology practice. Majority of arachnoid cysts, particularly those of smaller sizes, have a benign uneventful lifetime course. Certain symptoms may indicate serious complications related to underlying arachnoid cysts. Hemorrhage is one of the most fearsome complications of arachnoid cysts and almost all reported cases in the literature have undergone surgical correction. In this study, we aimed to present clinical and radiologic follow-up findings in two adult cases of intracranial arachnoid cyst with spontaneous intracystic hemorrhage and associated subdural hematoma, one of which was successfully treated conservatively. In addition, we broadly summarized and discussed pertinent studies in the English literature.

6.
Surg Radiol Anat ; 40(9): 1085-1091, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29860552

RESUMO

Ectopic intrathoracic liver tissue is extremely rare. Studies are mainly limited to case reports. In the vast majority of reported cases, a diagnosis of intrathoracic liver tissue was made either after a thoracic surgery or during a postmortem examination. However, once included in differential diagnosis, surgical intervention or biopsy procedures may be avoided with optimal diagnostic approach. In the present study, we conducted a literature review and proposed a new classification method for accessory liver within the thoracic cavity. This approach may provide a better understanding of underlying pathophysiology and aid in determination of optimal diagnostic modality and clinical management of such cases. According to our literature review, type II ectopic liver is the most common subtype followed by types I and III. All types can be definitively diagnosed with imaging modalities. On the other hand, it is important to prevent patients, particularly children, from unnecessary radiation exposure during performance of sophisticated diagnostic imaging modalities. Ultrasound is a safe, low-cost and accessible imaging modality that has not been previously reported in diagnosis of this entity. With addition of Color Doppler Imaging, ultrasound may allow for diagnosis with high precision in types I and II, as demonstrated in the present study. Based on long-term follow-up of a case reported here, this study also illustrates the natural course of this entity via non-operative management. This approach may prevent an unnecessary surgical intervention.


Assuntos
Coristoma/diagnóstico , Fígado , Doenças Raras/diagnóstico , Doenças Torácicas/diagnóstico , Ultrassonografia Doppler em Cores , Criança , Coristoma/complicações , Coristoma/epidemiologia , Coristoma/terapia , Tratamento Conservador , Meios de Contraste/administração & dosagem , Tosse/diagnóstico , Tosse/etiologia , Diagnóstico Diferencial , Febre/diagnóstico , Febre/etiologia , Humanos , Masculino , Pneumonia/diagnóstico por imagem , Doenças Raras/complicações , Doenças Raras/epidemiologia , Doenças Raras/terapia , Cavidade Torácica/diagnóstico por imagem , Doenças Torácicas/complicações , Doenças Torácicas/epidemiologia , Doenças Torácicas/terapia , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
8.
J Coll Physicians Surg Pak ; 28(1): 74-75, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29290200

RESUMO

Percutaneous nephrolithotomy has a success rate of 90%; however, its overall complication rate is approximately 83%, including urinary extravasation, bleeding necessitating transfusion, and postoperative fever. Septicemia, colonic and pleural injury are rare major complications. Neighboring organ injury, especially colonic injury, is frequently seen during tract dilatation procedure. In this study, we report a case of colonic lumbar hernia, which is a rare complication of percutaneous nephrolithotomy.


Assuntos
Hérnia/complicações , Cálculos Renais/cirurgia , Nefrolitotomia Percutânea/efeitos adversos , Complicações Pós-Operatórias , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia
9.
Clin Imaging ; 41: 106-111, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27840261

RESUMO

The aim of this study is to show the frequency of incidentally found (pulmonary thromboembolism) PTE in oncological patients and evaluate dispersion of incidents in terms of underlying primary tumor and seek risk factors associated with incidental PTE. Among one thousand oncology patients, 46 (4.6%) individuals found to have incidental PTE. Of positive patients, the highest proportion (24%) was belong to breast cancer group (n=11). The most common location for pulmonary emboli was the lower lobe branch of right pulmonary artery (n=33, 71.7%). Evident PTE had not been reported in final radiology reports of 21 cases.


Assuntos
Achados Incidentais , Neoplasias/complicações , Embolia Pulmonar/complicações , Embolia Pulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Feminino , Humanos , Masculino , Artéria Pulmonar/diagnóstico por imagem , Fatores de Risco
10.
J Clin Ultrasound ; 45(8): 507-510, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27874207

RESUMO

Congenital high airway obstruction syndrome (CHAOS) is a rare and potentially fatal entity resulting from complete or near complete developmental airway obstruction. Although most reported cases of CHAOS are sporadic, the condition may also be associated with certain syndromes and a variety of cervical masses. Meningocele and myelomeningocele have not yet been reported in association with CHAOS. We describe the typical constellation of sonographic findings in a case of early diagnosis of CHAOS associated with cervical myelomeningocele. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 45:507-510, 2017.


Assuntos
Obstrução das Vias Respiratórias/congênito , Obstrução das Vias Respiratórias/diagnóstico por imagem , Meningomielocele/complicações , Meningomielocele/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Adulto , Obstrução das Vias Respiratórias/complicações , Vértebras Cervicais/diagnóstico por imagem , Feminino , Humanos , Meningomielocele/embriologia , Morte Perinatal , Síndrome
11.
Ultrasound ; 24(3): 175-179, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27867411

RESUMO

Congenital cystic adenomatoid malformation accounts for the vast majority of congenital cystic lung pathologies. The clinical spectrum of congenital cystic adenomatoid malformation is wide and ranges from silent incidental lesions to severe congenital respiratory distress or stillbirths. Management of clinically silent lesions is still a matter of debate, with conservative follow-up being a popular approach during the last decade. However, an optimal methodology of follow-up is yet to be determined. In this study, ultrasound is proposed as a follow-up tool for clinically silent lesions based on the findings in a case with known congenital cystic adenomatoid malformation from the antenatal period, which has been followed up for four years.

12.
Medicina (Kaunas) ; 52(4): 257-261, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27515833

RESUMO

Cleft foot deformity, also known as ectrodactyly, is a rare congenital developmental defect of extremities caused by malformation in continuity of apical ectoderm. The syndrome typically involves malformation or absence of the central rays of the feet and is characterized by deformities like median deep clefts of distal extremities. Routine examination of feet during second-trimester ultrasound (US) may increase the detection rates of foot malformations. Many malformations can be diagnosed with 2-dimensional (2D) US, but 3-dimensional (3D) US also helps better understanding of the foot malformations. In the present study, we report the case of two brothers (a fetus and a 5-year-old) with cleft foot deformity. 2D and 3D second trimester US findings of one case and the foot radiography findings of the other are presented here.


Assuntos
Feto/anormalidades , Deformidades Congênitas do Pé/diagnóstico por imagem , Deformidades Congênitas dos Membros/diagnóstico por imagem , Ossos do Metatarso/anormalidades , Adulto , Pré-Escolar , Feminino , Feto/diagnóstico por imagem , Humanos , Imageamento Tridimensional , Masculino , Ossos do Metatarso/diagnóstico por imagem , Polidactilia/diagnóstico por imagem , Gravidez , Segundo Trimestre da Gravidez , Irmãos , Ultrassonografia Pré-Natal
13.
J Gastric Cancer ; 16(1): 54-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27104028

RESUMO

Gastrointestinal stromal tumors (GISTs) are rare tumors of the gastrointestinal system and comprise only 1% to 3% of all gastrointestinal tract tumors, with the majority of them arising in the stomach. In this report, we present the unique findings of a case of gastroduodenal intussusception caused by an underlying gastric GIST and complicated with severe acute pancreatitis.

14.
J Clin Ultrasound ; 41 Suppl 1: 32-4, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23124800

RESUMO

We report the case of a 15-year-old boy with Niemann-Pick disease type B with characteristic sonographic findings of splenic involvement. There were multiple well-defined echogenic nodular lesions within the spleen parenchyma, and these lesions were surrounded by ring-like blood flow on color Doppler imaging. Most of the patients with Niemann-Pick disease type B are children and they undergo repeated imaging studies. Therefore, familiarity with sonographic findings of the disease is required.


Assuntos
Doença de Niemann-Pick Tipo B/diagnóstico por imagem , Esplenopatias/diagnóstico por imagem , Ultrassonografia Doppler em Cores , Adolescente , Humanos , Masculino
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