Article
Unclassified Renal Cell Carcinoma with Reverse Polarity and Pathogenic von Hippel-Lindau Mutation in a Congenital Renal Malformation.
International journal of surgical pathology - 1 Apr 2026
Sugawara Emiko, Inamura Kentaro, Akiya Masashi, Dobashi Akito, Oguchi Tomohiko, Yonese Junji, Takeuchi Kengo
Abstract excerpt
Renal tumors that develop in congenitally malformed kidneys often fall outside standard histologic classifications. We present an unusual renal neoplasm in a 19-year-old boy with a hypoplastic right kidney. Computed tomography revealed a 70-mm sized unilocular cyst containing a 25-mm sized mural nodule, and laparoscopic nephroureterectomy was performed. Histologic examination showed low-grade papillary structures...
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