PERCUTANEOUS SCLEROTHERAPY OF A SYMPTOMATIC SIMPLE RENAL CYST IN A CHILD - OBSERVATION OF MEMBRANE DETACHMENT SIGN

A 6-year-old girl with a symptomatic renal cyst underwent successful p ercutaneous aspiration and sclerotherapy with hypertonic saline under US guidance. Although membrane detachment sign was seen clearly during aspiration, it was confirmed to be a simple cyst. In contrast to prev ious reports, membrane detachment sign is not pathognomonic for hydati d cysts and may be seen after simple cyst aspiration. Therefore, diffe rentiation of a symptomatic renal cyst from a hydatid cyst should not depend solely on membrane detachment sign. in either case US- or CT-gu ided percutaneous sclerotherapy should always be considered before sur gery.