Transitional cell carcinoma in a renal allograft.

A large urothelial tumor was detected by ultrasonography in the dilated collecting system of a well-functioning renal allograft 15 years after transplantation. The tumor was confirmed at computed tomography. Nephrectomy showed a transitional cell carcinoma. The occurrence of malignant tumors in renal allografts is a well known but rare complication.

Delayed remote abscess formation after spillage of infected gallstone during laparoscopic cholecystectomy: CT and US findings.

We report on a patient who presented an abdominal wall abscess two years after percutaneous cholecystectomy. The diagnosis of wall abscess caused by migrating gallstones could be made sonographically, whereas thin-section spiral CT failed to show the cause of the abscess: a non-calcified gallstone.

First branchial complex anomalies: report of 3 cases.

Three cases of first branchial cleft anomalies are presented. The embryology and pathology of first branchial complex anomalies, their imaging characteristics and differential diagnosis are discussed.

[Rt-PA thrombolysis in the treatment of massive pulmonary embolism]. / Thrombolyse met rt-PA voor de behandeling voor massale longembolie.

We present the case of a young comatose female patient in whom a massive pulmonary embolism was diagnosed by pulmonary angiography. During the angiography, not only successful thrombolytic therapy with recombinant human tissue-type plasminogen activator (rt-PA) (100 mg) was performed, but measuring of the pulmonary artery pressures, oxygen and carbon dioxide levels was also possible. Thrombolysis seems to be a good alternative to surgical thrombectomy.