RESUMO
OBJECTIVE: The purpose of this study is to describe the high-resolution CT findings of varicella-zoster pneumonia in three immunocompetent patients. CONCLUSION: High-resolution CT findings of varicella-zoster pneumonia include nodules, nodules with surrounding ground-glass attenuation, patchy ground-glass attenuation, and coalescence of nodules; the disappearance of these features on imaging studies corresponded to healing of skin lesions in patients after antiviral chemotherapy.
Assuntos
Varicela/diagnóstico por imagem , Pneumonia Viral/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adulto , Varicela/complicações , Feminino , Humanos , Pulmão/diagnóstico por imagem , MasculinoRESUMO
RATIONALE AND OBJECTIVES: We evaluated the accuracy of contrast-enhanced magnetic resonance (MR) angiography in demonstrating the findings of chronic pulmonary thromboembolism (CPTE) compared with conventional pulmonary angiography. METHODS: We examined 18 patients with CPTE proved by conventional pulmonary angiography and 16 healthy control patients. T1-weighted and single-breathhold, two-dimensional multiplanar spoiled gradient-recalled pulmonary images were obtained after injection of gadopentetate dimeglumine. Images were interpreted independently by two radiologists. RESULTS: All patients with CPTE were identified on MR angiography images by both readers. Sensitivity and specificity for MR angiography in diagnosing abnormal segments were 76% and 95% for reader 1 and 68% and 93% for reader 2, respectively. Sensitivity and specificity for MR angiography in depicting abnormal lobes were 83% and 96% for reader 1 and 82% and 93% for reader 2, respectively. Interobserver agreement was high; kappas for abnormal segments and abnormal lobes were .72 and .84, respectively. The T1-weighted spin-echo images demonstrated a mosaic signal intensity pattern in all patients with CPTE. CONCLUSION: Contrast-enhanced MR angiography accurately depicts abnormal segments and lobes in occlusive vascular disease and clearly distinguishes between patients with CPTE and those with healthy lungs.
Assuntos
Meios de Contraste , Angiografia por Ressonância Magnética , Embolia Pulmonar/diagnóstico , Doença Crônica , Circulação Colateral , Combinação de Medicamentos , Gadolínio DTPA , Humanos , Pulmão/irrigação sanguínea , Meglumina , Compostos Organometálicos , Ácido Pentético/análogos & derivados , Sensibilidade e EspecificidadeRESUMO
We report the case of a 20-year-old female with lymphoma of the breast. Mammography showed an asymmetric pattern of confluent densities without any discrete mass. Sonography revealed diffuse heterogenous echoic mass intermingled with low-and medium level echoes. We present the clinical, radiographic and histologic features of primary breast lymphoma with a brief review of the literatures.
