Blind-ending ureteral duplication: cause of asymptomatic abdominal mass.

Blind-ending ureteral duplication is a rare anomaly. The authors report on a 5-year-old girl who presented with an asymptomatic abdominal mass in which computerized axial tomography was used to make the diagnosis. The embryology of this anomaly is reviewed.

Periosteal reaction induced by prostaglandins.

Prostaglandin administration is the main therapy for ductal-dependent congenital heart disease prior to definitive therapy. We report a case in which tetralogy of Fallot and Noonan syndrome were diagnosed, complicated by small pulmonary arteries, which occasioned a delay in surgery. Treatment was started with prostaglandins, which were given for a total of 2 months, and a diffuse periosteal reaction occurred secondary to the administration of intravenous prostaglandin E1.