Localized cystic disease of the kidney
Localized cystic disease of the kidney is a rare benign entity that should be separated from hereditary cystic kidney diseases and cystic renal tumours.[1]
It is also known as segmental cystic disease of the kidney and unilateral cystic disease of the kidney.[1]
General
- Rare.
- Benign.
- Bosniak classification 2 or 3.
Gross
Features:[1]
- Cystic lesion without capsule.
Microscopic
Features:[1]
- Cuboidal or flat lining epithelium - contiguous with renal collecting ducts.
- No significant inflammation.
DDx:
- Cystic renal tumours.
- Hereditary cystic renal disease, e.g. autosomal dominant polycystic kidney disease.