title: Pilomatrixoma in a patient with bilateral retinoblastoma.
abstract: A 3-year-old girl with a history of bilateral retinoblastoma presented with a new right lower periorbital mass that showed calcifications on ultrasound. She had previously undergone systemic and intra-arterial chemotherapy for retinoblastoma but had no evidence of active disease for at least 6 months previously. Her family and oncologists feared that this mass was an extraocular metastasis of her retinoblastoma. On excision, it was diagnosed as a pilomatrixoma, an uncommon benign neoplasm that originates from the matrix of the hair root. This is the first reported case of pilomatrixoma in a patient with retinoblastoma.
authors: Department of Ophthalmology, University of California-San Francisco, San Francisco, CA 94143, USA.
authors: Ian R
authors: IR
authors: Gorovoy
authors: Noelle
authors: N
authors: Layer
authors: H Jane
authors: HJ
authors: Kim
authors: Stephen M
authors: SM
authors: Nobles
authors: Paul J
authors: PJ
authors: Stewart
authors: M Reza
authors: MR
authors: Vagefi
authors: Robert C
authors: RC
authors: Kersten
mesh_terms: D018906:Antineoplastic Agents, Alkylating / Q000627:therapeutic use; D002675:Child, Preschool; D005143:Eyelids; D005260:Female; D006201:Hair Diseases / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008558:Melphalan / Q000627:therapeutic use; D018296:Pilomatrixoma / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D019572:Retinal Neoplasms / Q000150:complications* / Q000188:drug therapy; D012175:Retinoblastoma / Q000139:chemically induced* / Q000188:drug therapy; D012878:Skin Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D014463:Ultrasonography
chemical_list: D018906:Antineoplastic Agents, Alkylating; D008558:Melphalan