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[Histologic findings in kidney tumors]
M Hora1, Z Ouda, E Schejbalová
1Urologická klinika FN, Plzen.
Summary
This study analyzed 304 primary renal tumors, finding clear cell renal cell carcinoma (Grawitz tumor) to be most common. Histological examination is crucial for accurate diagnosis, with imaging having limited predictive value for tumor type.
Area of Science:
- Urology
- Pathology
- Oncology
Context:
- A retrospective analysis of 304 primary renal tumors treated surgically between 1988-1995.
- Focus on histological examination following surgical intervention.
Purpose:
- To present the histological spectrum of primary renal tumors.
- To correlate histological findings with preoperative imaging assessments.
- To propose a classification system for renal masses.
Summary:
- Clear cell renal cell carcinoma (Grawitz tumor) comprised 83.9% of cases.
- Other identified tumors included papillary carcinoma, adenoma, oncocytoma, and rare types.
- Multilocular cystic renal cell carcinoma, papillary tumors, chromophobe renal cell carcinoma, oncocytoma, and angiomyolipoma were detailed.
- Preoperative imaging showed limited accuracy in predicting histological tumor type, except for angiomyolipoma.
Impact:
- Highlights the predominance of clear cell renal cell carcinoma in surgical resections.
- Underscores the diagnostic limitations of preoperative imaging for precise renal tumor subtyping.
- Suggests a dual classification approach for renal masses, integrating imaging and histology.