Intrapericardial teratoma diagnosed on CT.

Intrapericardial teratomas are rare tumors which usually present in infancy. These tumors may be life-threatening because of the associated large pericardial effusion and cardiac compression. Here we present a case of intrapericardial teratoma which presented with cardiac tamponade in a neonate and was diagnosed using multidetector spiral computed tomography.

Sonographic diagnosis of uncomplicated first-trimester pregnancy in the rudimentary horn of a unicornuate uterus.

Although pregnancy in a rudimentary uterine horn is rare, the correct diagnosis of this condition on routine sonographic examination is critical, because its natural history usually involves the rupture of the pregnant horn during the second or third trimester, resulting in life-threatening bleeding. We report a case in which the diagnosis of right unicornuate uterus with a left noncommunicating rudimentary horn was made in the first trimester on routine sonographic examination.

Sonographic detection of Indian grass (Sorghastrum nutans), an unusual foreign body, in the urinary bladder.

A variety of foreign bodies have been described in the urinary bladder. These bodies are usually found in patients who have a psychiatric disorder with a sexual perversion or inquisitiveness (as in children) as the underlying cause. We report a case of Indian grass inserted into the urinary bladder by an adult male that was detected on sonography and subsequently removed successfully via surgery.

Unusual presentations of midgut volvulus with the whirlpool sign.

Objective: The purpose of this series was to emphasize the varied presentations of midgut volvulus from neonatal life to well into adulthood and to evaluate the role of the whirlpool sign on sonography in diagnosing this condition.

Methods: A retrospective search of all midgut volvulus cases diagnosed in the radiology department of a 1500-bed general hospital between February 2002 and July 2005 was done. Eight patients with surgically confirmed midgut volvulus were found, all of whom had undergone sonography as the initial screening investigation.