title: Granular cell myoblastoma in Nigerian Igbos.
abstract: Three cases of granular cell myoblastoma occurring in the Igbos of Nigeria are reported. In this ethnic group the tumor has shown several typical features as follows: it is rarely diagnosed preoperatively; it is found more frequently in the oral cavity and breast than in most other sites; and it is in the maxilla of girls that it usually presents congenitally. A unique presentation in this ethnic group occurred in the perineum. The lesion found in this site appears to be the first to be reported in the literature.
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis; D005260:Female; D005887:Gingival Neoplasms / Q000175:diagnosis; D006801:Humans; D007231:Infant, Newborn; D008875:Middle Aged; D009379:Neoplasms, Muscle Tissue / Q000175:diagnosis; D009549:Nigeria; D010502:Perineum