Recurrent renal hydatid disease with suspected pelvic seeding: a case report

Renal hydatid disease is a rare manifestation of echinococcosis, accounting for ˂4% of cases. We report a 47-year-old male with two prior surgeries for right renal hydatid cysts, presenting with right upper quadrant pain, dysuria, and low-grade fever. Imaging revealed a recurrent right renal cystic lesion and an incidental pelvic cyst near the seminal vesicle, raising concern for possible dissemination. Laparoscopic aspiration and deroofing of the renal cyst were performed, followed by a 6-month course of albendazole. Recovery was uneventful, and follow-up imaging showed no recurrence or new cyst formation. This case highlights the importance of long-term surveillance in renal hydatid disease and the need to consider rare sites of recurrence or dissemination. Multimodal imaging and minimally invasive surgery play a central role in diagnosis and management, even in patients outside endemic regions.