ABSTRACT
Hydatid disease involving the breast is Very infrequent. The breast can be either a primary site of the disease or part of a disseminated hydatidosis. This disease should be included in the differential diagnosis of breast lumps especially in endemic areas. Pre-operative diagnosis can be made by tine needle aspiration cytology. The breast hydatid disease also can be diagnosed by radiological or serologic means but neither of them is definitive. Surgery is the treatment of choice. We report a case of isolated hydatid cyst of breast in a 40-year-old woman, from Afghanistan who presented La our field hospital with a right breast painless lump of one year duration, which was diagnosed incidentally during surgery from it 5 gloss appearance which mimics that of a liver hydatid cyst, normally common in this endemic area