Superior mesenteric artery syndrome: spectrum of CT findings with multiplanar reconstructions and 3-D imaging.

Objective: This article reviews the causes, clinical presentation, and CT diagnosis of superior mesenteric artery (SMA) syndrome.

Conclusion: In conjunction with an appropriate clinical history, several CT findings can suggest the diagnosis of SMA syndrome. These findings include narrowing of the aortomesenteric angle and distance, distension of the stomach and duodenum, and dilatation of the left renal vein with left-sided venous collaterals.

Hemodialysis fistula occlusion: demonstration with 64-slice CT angiography.

The speed and resolution of 64-slice CT have resulted in new applications for CT angiography (CTA) owing to rapid data acquisition during the arterial phase, improved visualization of small vessels, and lengthened anatomic coverage. Extremity CT angiography is one such region. This case report shows the utility of multislice CTA for the evaluation of hemodialysis graft dysfunction.

Lymphoepithelial cyst of the pancreas--evaluation with multidetector CT.

Lymphoepithelial cyst of the pancreas is a rare cystic pancreatic tumor. In this case report we provide the imaging perspective of the lesion including the role of multidetector CT (MDCT) and CT angiography and 3D imaging.

Abdominal involvement in tuberculosis.

Rising incidence of disseminated and extrapulmonary tuberculosis (TB), especially in immunocompromised hosts and patients with multi-drug-resistant tuberculosis, has resulted in an increase of unusual clinical and radiographic presentations of TB. With CT being a common part of emergency room (ER) evaluation of abdominal pain, it is imperative that radiologists be able to recognize abdominal presentations of TB. We discuss and illustrate typical and less common CT manifestations of tuberculosis in the abdomen to help ER radiologists in this task.

Amyloidosis: review and CT manifestations.

Amyloidosis is a collection of disease entities that produce considerable morbidity and mortality and are increasing in prevalence. The imaging findings are problematically nonspecific and diverse. This lack of specificity is compounded by the fact that amyloidosis is strongly associated with and frequently coexists with many other chronic disease states that have their own imaging findings.

Cross-sectional imaging of amyloidosis: an organ system-based approach.

Systemic amyloidosis--whether primary or secondary--can involve any organ or organ system and imparts significant morbidity and mortality. Unfortunately, imaging findings are only rarely specific, manifesting in a variety of ways (e.g.