Adductor Muscle Echinococcosis: A Rare Presentation

Hydatid cyst disease caused by Echinococcus granulosus may at times affect unusual sites and present a diagnostic challenge especially if found at rare locations. A 51 year male presented with a slowly progressive swelling in the upper medial aspect of the left thigh without pain and any discharge. There was no history of trauma and any dog keeping. Examination revealed a large 10 × 12 cm soft tissue swelling which was non-tender, non-pulsatile, without any features of acute inflammation figure 1. Overlying skin was normal. No bruit or venous hum was heard.