Features on CT scan and MRI are compatible with left renal hydatid cyst (pathology proved).
CT scan is an accurate and sensitive modality for diagnosis of renal hydatid cyst 1 and shows a unilocular or multilocular cyst with or without peripheral calcification. CT scan may also show a detached membrane, a multiloculated cyst with mixed internal density, and daughter cysts with lower density than the maternal matrix 2.
Hydaturia is a pathognomonic sign of renal hydatidosis 2.