Percutaneous sclerotherapy of a giant benign renal cyst with alcohol

We report a case of giant, benign renal cyst that was treated with percutan eous aspiration and sclerotherapy using 95% alcohol. A seven French cathete r was inserted into the cyst under ultrasonographic and fluoroscopic guidan ce, and was then left in place to drain the cyst contents. Approximately 4 1 of fluid was drained the first day. The following day, a gravity sinogram was obtained, which showed there were no connections between the cyst and the collecting system. The alcohol treatment involved repeated injections o f decreasing amounts of alcohol, with volumes selected in accordance with f ollow-up sinograms. The patient's symptoms resolved and cyst drainage stopp ed after 3 successive days of therapy. Totally 600 ml alcohol has given. Fo llow-up ultrasound (US) and computed tomography (CT) studies showed no recu rrent disease; with only a small remnant of the cyst wall. We encountered n o major complications during follow-up. (C) 2001 Elsevier Science Ireland L td. All rights reserved.