Article
Evidence for Wnt/β-Catenin-Activated Rosette-Forming Carcinoma Arising in Rb-Inactivated Bowen Disease.
Journal of cutaneous pathology - 1 Mar 2026
Naharro María José, Rojas Nohelia, Gegúndez Héctor, Monteagudo Carlos
Abstract excerpt
Wnt/β-catenin-activated nonpilomatrical rosette-forming carcinoma is a recently described skin neoplasm with a distinct morphology and pathogenic profile involving mutations in the APC/CTNNB1 and RB1 genes. We report a Wnt/β-catenin-activated, invasive, rosette-forming carcinoma surrounded by Bowen disease on the leg of a 90-year-old woman. Pathogenic mutations in RB1 and APC with allelic frequencies of 83.5% and...
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