Hydatid cyst of radial bone.

Hydatidosis is a parasitic disease caused by Echinococcus granulosus or, less frequently Echinococcus multilocularis. The liver and lungs are most often affected; hydatid disease of radius without involvement of other sites is extremely rare. Osseous hydatid disease should be included in the differential diagnosis for cystic lesions of bone. The diagnosis of bone hydatidosis is primarily based on radiological and histopathological findings. Here we present a case of hydatid cyst in the lower third of radius in a 34-year old woman. The cysts were removed with wide excision and post-operative albendazole was given. No recurrence was observed on two years follow-up.