Renal hydatid cyst


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.