USCAP @uscap.org · Nov 20 A radical nephrectomy and lymphadenectomy were performed. Most of the tumor resembled a tubulocystic carcinoma but there were foci of a higher grade glandular and sarcomatoid component.
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Diagnosis: This is a tubulocystic carcinoma high-grade or poorly-differentiated foci (sarcomatoid) foci, and these tumors are associated with fumarate hydratase deficiency. This patient died of metastatic carcinoma.