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Updated: Jun 11, 2026

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Intrarenal epidermoid cyst presented as an enlarged multicystic kidney
Asmaa Gaber Abdou1, Nancy Youssef Asaad
1Department of Pathology, Faculty of Medicine, Menofiya University, Shebein Elkom, Egypt. Asmaa_elsaidy@yahoo.com
Abstract:
This report describes a case of large multiple and multilocular epidermoid cysts affecting the left kidney of a 67 old male. The condition was accidentally discovered during the ultrasonography for left loin pain and revealed enlarged left kidney with picture suggestive of hydronephrosis. Grossly, the kidney was distorted cysts that were filled with a cheesy material. The histologic picture of an end stage kidney disease was apparent in the compressed renal parenchyma by these cysts that were identical to an epidermoid cyst elsewhere. In conclusion, although rare, epidermoid cyst of the kidney could cause serious kidney damage leading to an end stage kidney disease. Epidermoid cyst of the kidney could be multiple producing a picture similar to hydronephrosis and broadening the differential diagnosis of multicystic disease of the kidney.
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