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Solid variant of papillary renal cell carcinoma
1Department of Pathology, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C.
Chang Gung Medical Journal
|December 1, 2001
Summary
A newly identified renal tumor, solid variant of papillary renal cell carcinoma, was observed in a 36-year-old male. This rare cancer shares features with metanephric adenoma, suggesting a potential relationship.
Area of Science:
- Nephrology
- Oncology
- Pathology
Background:
- Solid variant of papillary renal cell carcinoma (SV-PRCC) is a recently described renal epithelial neoplasm.
- Understanding its distinct morphology and potential origins is crucial for accurate diagnosis and patient management.
Observation:
- A case study of a 36-year-old male presented with a solitary right renal tumor.
- The tumor exhibited solid sheets of uniform cells with micronodules resembling glomeruloid bodies.
- Abortive papillae and increased cellular atypia were noted within these micronodules.
Findings:
- Immunohistochemical analysis revealed neoplastic cells positive for epithelial membrane antigen, cytokeratins 7 and 17.
- Cells were negative for vimentin and 34 beta E12.
- The observed features confirmed the diagnosis of SV-PRCC.
Implications:
- The morphological and genetic similarities between SV-PRCC and metanephric adenoma suggest a possible developmental or etiological link.
- Further research into this relationship could refine diagnostic criteria and therapeutic strategies for renal cell carcinomas.