Primary Renal Fibrosarcoma with Massive Tumor Size and Inferior Vena Cava Extension Mimicking Renal Cell Carcinoma: A Rare Case Report
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Primary renal fibrosarcoma is an exceedingly rare malignant mesenchymal tumor that accounts for only 1-3% of adult renal malignancies, often mistaken for sarcomatoid renal cell carcinoma (RCC) or leiomyosarcoma due to overlapping morphology. Thus, accurate dis... ...
