Assuntos
Diagnóstico por Imagem/métodos , Oncologia/métodos , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/patologia , Adenocarcinoma/diagnóstico , Adenocarcinoma/patologia , Endoscopia/métodos , Fluordesoxiglucose F18/farmacologia , Humanos , Imageamento por Ressonância Magnética/métodos , Pancreatite/diagnóstico , Pancreatite/patologia , Tomografia por Emissão de Pósitrons/métodos , Cintilografia/métodos , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios X/métodos , Ultrassonografia/métodosRESUMO
The educational objectives for this self-assessment module are for the participant to exercise, self-assess, and improve his or her understanding of the imaging features of sarcoidosis and the role of imaging in the clinical management of patients with sarcoidosis.
Assuntos
Diagnóstico por Imagem , Sarcoidose/diagnóstico , Diagnóstico Diferencial , Fluordesoxiglucose F18 , Humanos , Imageamento por Ressonância Magnética , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Sarcoidose/mortalidade , Tomografia Computadorizada por Raios XRESUMO
OBJECTIVE: The objectives of this article are to discuss the epidemiology and natural history of sarcoidosis; to review the classic imaging features of sarcoidosis on radiography, CT, and 67Ga nuclear medicine scans; and to present clinical examples of sarcoidosis as seen on PET and PET/CT in the chest, abdomen and pelvis, and bones. CONCLUSION: The imaging features of sarcoidosis are diverse and can be seen on a variety of imaging techniques. It is important for radiologists and nuclear medicine physicians to recognize the common imaging features and patterns of sarcoidosis in order to raise the possibility in the appropriate clinical setting.
Assuntos
Sarcoidose/diagnóstico por imagem , Tomografia Computadorizada de Emissão/métodos , Tomografia Computadorizada por Raios X/métodos , Diagnóstico Diferencial , Fluordesoxiglucose F18 , Humanos , Compostos RadiofarmacêuticosRESUMO
Acute pancreatitis is a common disease with potentially serious outcomes. Multiple imaging modalities can be used to evaluate the disease process and its associated complications. Familiarity with the pathogenesis of this disease, indications for imaging, imaging protocols, staging systems, and the strengths and weaknesses of various modalities will help the radiologist optimize patient care.
Assuntos
Imageamento por Ressonância Magnética/métodos , Pancreatite/diagnóstico , Tomografia Computadorizada por Raios X/métodos , Ultrassonografia de Intervenção/métodos , Doença Aguda , Humanos , Pâncreas/diagnóstico por imagem , Pâncreas/patologia , Radiografia Intervencionista/métodos , Índice de Gravidade de DoençaRESUMO
The objective of this study was to report the clinical outcome of patients with an appendicolith on computed tomography (CT) who did not undergo appendectomy on initial presentation. Reports from 45,901 abdominal CT examinations performed between March 2000-March 2004 containing the words "appendicolith" or "fecalith" were identified. Patients with appendicoliths not initially undergoing appendectomy were followed to assess re-presentation with abdominal pain ultimately requiring appendectomy. Seventy-four patients had an appendicolith on CT report, were discharged without surgery, and had clinical follow-up. Fifty-two of 74 (70%) patients had no appendiceal symptoms, were given an alternate diagnosis, and did not return with appendicitis. Twenty-two of 74 (30%) patients were discharged without acute appendicitis but with possible appendiceal symptoms. Five of these 22 (23%) patients returned with pathologically proven acute appendicitis, and all had possible appendiceal symptoms at initial presentation. An appendicolith may be a marker of increased risk for appendicitis but is not an indication for appendectomy.
