Imaging and intervention of retroperitoneal fibrosis.

Retroperitoneal fibrosis is a rare condition characterized by the development of fibrous plaques in the retroperitoneal space. The fibrous plaques characteristically arise distal to the bifurcation of the abdominal aorta and progress to encase the iliac vessels distally and are defined by the associated encasement of one or both ureters. Imaging plays an important role in not only establishing the diagnosis, but also in monitoring disease progression.

CT-guided bone biopsy: Initial experience with a commercially available hand held Black and Decker drill.

Purpose: To describe the use of a simple commercially available Black and Decker hand based drill in performing CT-guided bone biopsies.

Materials And Methods: Three international institutions were enrolled in the study. In each centre, a fellowship trained musculoskeletal radiologist directed the assessment of a hand based commercial drill for performing CT-guided bone biopsies.

Direct thrombin injection into aneurysmal sac in a patient with a type II endoleak.

Endovascular grafting of abdominal aortic aneurysms provides a good alternative to open surgery, especially in high-risk patients. Endoleaks are a well-recognized complication and are typically diagnosed on CT. We describe a case in which a patient's endoleak was evaluated by MRI and successfully treated by direct thrombin injection into the site of the leak.