Validity of colour doppler sonography for evaluation of portal venous system in hepatocellular carcinoma.

Objective: To assess the validity of colour doppler sonography in the evaluation of portal venous system in hepatocellular carcinoma.

Methods: The study was conducted at the Department of Diagnostic and Interventional Radiology at Shifa International Hospital, Islamabad, from March to November 2009, and comprised 100 patients who were already diagnosed cases of hepatocellular carcinoma or those having high suspicion based on clinical criteria (e.g.

Paraganglioma of urinary bladder: an unusual presentation. pitfalls in diagnosis and treatment.

Paragangliomas of urinary bladder are extremely rare which usually present with characteristic clinical picture in about half of the cases. We report a case where the presentation was unusual, leading to initial misdiagnosis corrected on histological review.