RESUMO
PURPOSE: To evaluate the radiographic findings of aberrant right subclavian artery (ARSCA) initially depicted on CT. METHODS: Twenty-five cases incidentally diagnosed during CT between June 1993 and May 2001, were examined. They included 13 men and 12 women aged from 29 to 84 years old (mean, 63 years). Three findings were evaluated on posteroanterior radiographs: 1) oblique edge, 2) vessel through the trachea, and 3) mass effect. On lateral radiographs, the following findings were evaluated: 1) posterior tracheal imprint, 2) retrotracheal opacity, and 3) aortic arch obscuration. RESULTS: On the posteroanterior radiographs, oblique edge, vessel through the trachea, and mass effect were observed in 32% (8/25), 44% (11/25), and 20% (5/25) of cases, respectively. On the lateral radiographs, posterior tracheal imprint, retrotracheal opacity, and aortic arch obscuration were observed in 95% (18/19), 58% (11/19), and 37% (7/19), respectively. On posteroanterior radiographs, normal cases were most frequent (40%). In contrast, lateral radiographs demonstrated at least one abnormality in all cases. As a variation of posterior tracheal imprint, the long-segment type of compression was observed in 32%. CONCLUSIONS: We consider detailed interpretation of the posterior tracheal edge on lateral radiographs to be important in diagnosing cases of mild ARSCA.
Assuntos
Artéria Subclávia/anormalidades , Tomografia Computadorizada por Raios X , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia Torácica , Artéria Subclávia/diagnóstico por imagemRESUMO
In this report we describe the pathological and radiological findings in a patient with primary ureteral MALT lymphoma. We suggest that it is useful for the differential diagnosis of ureter masses that some MALT lymphomas may show a low signal intensity on T2-weighted MR images.
Assuntos
Linfoma de Zona Marginal Tipo Células B/diagnóstico , Linfoma de Zona Marginal Tipo Células B/patologia , Neoplasias Ureterais/diagnóstico , Neoplasias Ureterais/patologia , Idoso , Humanos , Linfoma de Zona Marginal Tipo Células B/diagnóstico por imagem , Imageamento por Ressonância Magnética , Masculino , Tomografia Computadorizada por Raios X , Ureter/patologia , Neoplasias Ureterais/diagnóstico por imagem , UrografiaRESUMO
The authors report a case of mucosa-associated lymphoid tissue (MALT)-type lymphoma of the lung that showed an increased accumulation of 18fluorodeoxyglucose (FDG) on positron emission tomography. It should be considered that MALT-type lymphoma could be cause a increased FDG uptake in the lung.
