Squamous cell carcinoma of the renal pelvis is a rare neoplasm and is usually associated with long standing stone disease. The disease is aggressive in nature and usually has a poor prognosis. We report a case of renal lithiasis who underwent successful percutaneous nephrolithotomy (PCNL) for renal pelvic calculus, and eight months later presented with a large invasive squamous cell carcinoma in the same location.
Primitive neuroectodermal tumors of the kidney are rare, the diagnosis usually being made at histopathology. A young adult presented with a painful left renal mass. CT Scan of the abdomen revealed a large necrotic tumor of the left kidney. At surgery the patient was found to have a venous thrombus confined to the renal vein. Radical nephrectomy was done. Histopathology showed a round cell neoplasm with typical Homer Wright rosette formation and positive staining for neuron specific enolase (NSE) and MIC-2 on immunohistochemistry. The patient is undergoing multidrug chemotherapy and is alive and well at a follow up of nine months.
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