title: Mesectodermal leiomyoma of ciliary body.
abstract: A 37-year-old woman had a mass in her left ocular globe. Uveal melanoma was suspected and enucleation was performed. Microscopically, the lesion proved to be a typical case of mesectodermal leiomyoma of the ciliary body. According to some authors, the peculiar neural appearance of this tumor could be the reflection of its probable origin from mesectodermal smooth muscle. Immunohistochemical analysis showed reactivity for muscle-specific actin and negativity for desmin, S-100 protein, HMB-45, EMA, and GFAP. Our results do not support the proposed neuroectodermical origin of this tumor, since coexpression of muscular and neural markers was not observed.
authors.affiliation: Hospital General Universitario de Alicante, España.
authors.forename: C
authors.initials: C
authors.lastname: Alenda
authors.forename: F I
authors.initials: FI
authors.lastname: Aranda
authors.forename: A
authors.initials: A
authors.lastname: Payá
authors.forename: C
authors.initials: C
authors.lastname: Córdoba
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D002924:Ciliary Body / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D015353:Eye Enucleation; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D009363:Neoplasm Proteins / Q000032:analysis; D016896:Treatment Outcome; D014604:Uveal Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor; D009363:Neoplasm Proteins