Renal papillary adenoma
Renal papillary adenoma
Updated: 10/06/2020
© Jun Wang, MD, PhD
General features
- AKA renal cortical adenoma, benign
- Commonly incidental finding
- Increasing numbers during life
- Probably a precursor for papillary renal cell carcinoma
Clinical features
- Commonly asymptomatic
Pathological findings
- Usually < 5 mm
- Well-circumscribed, unencapsulated tumor in cortex
- Dense papillary/tubular/tubulopapillary architecture
- Small cuboidal cells without significant atypia
- Psammoma bodies, xanthoma cells may present
- NO invasion
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