Mutation in the PTCH1 tumor suppressor gene in gorlin syndrome. A case report Mutación en el gen supresor tumoral PTCH1 en el síndrome de gorlin. Presentación de un caso

© 2014 Ediciones Mayo, S.A. Todos los derechos reservados.Gorlin syndrome is a hereditary disease, and it is also known as nevoid basal cell carcinoma (NBCC). NBCC follows an autosomal dominant inheritance pattern, with high penetrance and variable clinical expression. NBCC is characterized by multiple basal cell carcinomas, ovarian fibroma and a variety of clinical manifestation known as minor or mayor criteria. NBCC is a genetic disease with low incidence in México and it is associated with mutated PTCH1 suppressor gen. We present the case of a 13 years old feminine patient was a healthy product of the first gestation of parents with no history of disease. Her clinical characteristics include macrocephaly, broad forehead, broad nasal bridge, telecanthus, high-arched palate, with 8 palmar and plantar pits. The radiology dental studies showed chists odontogenic with a recurrent pattern. Molecular studies showed a heterocigotic mutation in the suppressor gene PTCH1. Molecular analysis showed a novel mutation and clinical manifestation of the NBCC, not described before. For the NBCC there is no definitive treatment, and a multidisciplinary medical team is necessary for prevention and genetic counseling.