Management of a patient with a clot-filled pulmonary arteriovenous malformation.

Transcatheter coil embolization is an established treatment for pulmonary arteriovenous malformations (PAVMs). Encountering a patient with a symptomatic PAVM partially occluded with a prominent clot is rare. Successful and safe coil embolization of such a PAVM is described in this case report.

The corona mortis, a frequent vascular variant susceptible to blunt pelvic trauma: identification at routine multidetector CT.

Purpose: To determine if contrast-enhanced multidetector computed tomography (CT) can demonstrate the "corona mortis" (translated as "crown of death"), a common variant obturator artery originating from the external iliac artery system that is susceptible to pelvic trauma.

Methods And Materials: A representative case study is described. The authors evaluated 50 consecutive patients undergoing routine clinically indicated, standard protocol, venous phase contrast-enhanced multidetector CT of the pelvis, 25 with a 16-slice scanner and 25 with a 64-slice scanner.