Table of ContentsDefinition / General | Case Reports | Micro Description | Micro Images | Positive Stains | Negative Stains | Differential Diagnosis
Cite this page: Lymphoepithelioma-like carcinoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/kidneytumormalignantLEL.html. Accessed February 22nd, 2017.
Definition / General
- Undifferentiated carcinoma with prominent lymphoid stroma
- Rare in kidney
- May be considered a variant of urothelial carcinoma in renal pelvis (Mod Pathol 2006;19:494)
- Undifferentiated round or spindle cell carcinoma will ill defined borders, arranged in syncytial sheets or small clusters of cells, with abundant inflammatory cells including: T cells, plasma cells, eosinophils, macrophages; indistinguishable microscopically from nasopharyngeal undifferentiated carcinoma (or lymphoepithelioma)