Ruptured renal hydatid cyst

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Left flank pain and hematuria

Patient Data

Age: 40 years
Gender: Female
ct

Large multiloculated cyst with thick septae and higher internal density is seen at middle and lower pole of the left kidney. There is also hydronephrosis and several small stones on the same side. The right kidney is also involved. No evidence of hydroureter or ureter stones. 

Case Discussion

There is a multiloculated cystic lesion with thick septations and high internal density on the left kidney with resultant hydronephrosis . Urine analysis showed hydaturia which is a pathognomonic sign of renal hydatidosis and results from the rupture of a  hydatid  cyst into the collecting system.

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