Abstract

Cystic echinococcosis is a parasitic infestation caused by the tapeworm Echinococcus granulosus.Although adults are mostly affected, children also suffer from this disease. The lungs are the most common sites of infection in children, however involvement of other sites is also seen. Peritoneal cystic echinococcosis is rare in children even in endemic areas. Determining whether the origin of this site is primary or secondary remains controversial, especially in children. Secondary peritoneal cystic echinococcosis are expected to occur after spontaneous, traumatic or accidental rupture during surgery of primary liver or splenic cysts. Primary peritoneal cystic echinococcosis without any evidence of another organ involvement has been rarely reported. We report a case of cystic echinococcosis involving the peritoneum and scrotum presenting with a gradually increasing scrotal swelling in a 7-year-old child, along with sonographic, CT, and MRI features.

Key words: testicular swelling, hydatid cysts, ultrasound, CT