Primary renal malignant fibrous histiocytoma is a rare tumor that cannot be distinguished from renal cell carcinoma preoperatively using clinical or imaging techniques.
Highlights diagnostic pitfalls in rare renal sarcomas; hypothesis-generating for improved preoperative differentiation strategies.
We report on a case of primary renal malignant fibrous histiocytoma. Primary manifestation in the kidney is rare with only 22 cases reported in the literature. Preoperatively, a renal cell carcinoma cannot be distinguished from a malignant mesenchymal tumor with clinical or imaging techniques. We discuss the pathologic differential diagnosis, therapeutic strategies and prognosis of this infrequent tumor.
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Papadopoulos et al. (1999) studied this question.
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