Splenic hydatid infection is a rare form of hydatid disease, with the same characteristics of various appearances of a hydatid cyst. This case shows one of the forms of a suspected hydatid cyst - a solitary cyst with fluid content and coarse mural calcifications. These features are probably of a CE 5 splenic hydatid cyst. Other differential diagnoses include splenic epidermoid, chronic hematoma and splenic pseudocyst.