An unusual right iliac fossa lump -lymphatic filariasis presenting as a retroperitoneal cystic lesion, a rare case

Primary retroperitoneal parasitic cysts are rare. Lymphatic filariasis afflicts over 25 million people with genital disease worldwide and is an endemic infection in tropical regions of the world presenting commonly as lymphocele, hydrocele, chyluria or groin lymhadenovarix. We present a rare case of filarial infection in a 70 yr old male presenting with pain and recent onset right iliac fossa lump. Patient was managed surgically and histopathology findings confirmed it to be a filarial cyst. After receiving a course of diethylcarbamazine patient is asymptomatic at 2 years follow up.