title: Multiple pilomatricomas in Rubinstein-Taybi syndrome: a case report.
abstract: Rubinstein-Taybi syndrome is a multisystem developmental disorder due to an autosomal dominant mutation. It is clinically defined by the presence of peculiar facies, mental retardation, and broad thumbs and first toes. Important dermatologic findings include hirsutism, keloids, hemangiomas, and dermatoglyphic abnormalities. We report a 12-year-old girl with the typical phenotype of Rubinstein-Taybi syndrome, associated with numerous pilomatricomas. These are benign epithelial neoplasms with hair cell differentiation that may have a familial transmission. Pilomatricomas have not been reported in patients with Rubinstein-Taybi syndrome, although their association with myotonic dystrophy, another autosomal dominant disorder, is well known. Possibilities to explain the association include contiguous gene syndrome, the action of a pleiotropic gene, predisposition to malformations, and mere coincidence.
authors.affiliation: 1st Dept. of Dermatology and Pediatric Dermatology, IRCCS-University of Milan, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Cambiaghi
authors.forename: E
authors.initials: E
authors.lastname: Ermacora
authors.forename: A
authors.initials: A
authors.lastname: Brusasco
authors.forename: L
authors.initials: L
authors.lastname: Canzi
authors.forename: R
authors.initials: R
authors.lastname: Caputo
mesh_terms: D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006201:Hair Diseases / Q000150:complications* / Q000473:pathology; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D018296:Pilomatrixoma / Q000150:complications* / Q000473:pathology; D012415:Rubinstein-Taybi Syndrome / Q000150:complications* / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology