Basaloid follicular hamartomas in pediatric Basal Cell Nevus Syndrome: A diagnostic challenge
Francesca Besagni, Emi Dika, Costantino Ricci, Cosimo Misciali, Giulia Veronesi, Barbara Corti, Carlotta Gurioli, Iria Neri
Abstract
Basal Cell Nevus Syndrome (BCNS) is an autosomal dominant inherited disease caused by PTCH1 (9q22.3-q31) germline mutations. Skin manifestations are mainly characterized by hyperkeratosis of the palms and soles, palmoplantar pits and a strong predisposition to develop multiple basal cell carcinomas (BCCs). Recently, it has been hypothesized that basaloid follicular hamartomas (BFH) could be included in BCNS skin features. We present three pediatric cases of GS with BCCs and BFHs. Clinical, dermoscopic and immunohistochemical tools are reported.
Topics & Concepts
HyperkeratosisBasal Cell Nevus SyndromePathologyBasal cell carcinomaPTCH1Basal (medicine)DermatologyMedicineBasal cellBiologyGeneticsHedgehog signaling pathwayInternal medicineGeneInsulinHedgehog Signaling Pathway StudiesGenetic and rare skin diseases.Cancer and Skin Lesions