Overview
Renal neoplasms encompass a spectrum of tumors arising from the kidney, including clear cell renal cell carcinoma (ccRCC), papillary renal cell carcinoma, and less common entities like carcinoid tumors. Recent advances emphasize the integration of morphological and molecular features for accurate diagnosis and tailored management 1.Diagnosis
Morphological Assessment: Essential for initial classification 1.
Molecular Testing: Recommended for specific entities to refine diagnosis 1.
Immunohistochemistry: Useful for distinguishing between different renal tumor types 1.
Genetic Testing: Indicated for hereditary or syndromic associations to guide further management 1.Management
Clear Cell Renal Cell Carcinoma (ccRCC):
- Targeted Therapies: Use of VEGF inhibitors (e.g., sunitinib, pazopanib) based on molecular profiles 1.
Carcinoid Tumors:
- Surgical Resection: Primary treatment approach 2.
- Adjuvant Therapy: Limited evidence; consider based on stage and risk factors 2.Special Populations
Hereditary Syndromes: Genetic testing crucial for identifying syndromes like von Hippel-Lindau disease 1.
Pediatrics: Specific considerations for diagnosis and management due to rarity and unique molecular profiles 1.
Elderly Patients: Tailored treatment plans considering comorbidities and performance status 1.Key Recommendations
Integrate molecular and immunohistochemical profiles alongside morphology for accurate diagnosis of renal neoplasms (Evidence: Strong 1).
Consider genetic testing in cases suggestive of hereditary syndromes to guide patient management (Evidence: Moderate 1).
Surgical resection is the primary treatment for carcinoid tumors of the kidney, with adjuvant therapy options based on individual risk assessment (Evidence: Weak 2).References
1 Trpkov K, Williamson SR, Gill AJ, Adeniran AJ, Agaimy A, Alaghehbandan R et al.. Novel, emerging and provisional renal entities: The Genitourinary Pathology Society (GUPS) update on renal neoplasia. Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc 2021. link
2 Ghazi MR, Brown JS, Warner RS. Carcinoid tumor of kidney. Urology 1979. link90537-5)