title: [Congenital perianal leiomyosarcoma. Presentation of a case].
mesh_terms: D001005:Anus Neoplasms / Q000151:congenital* / Q000473:pathology / Q000628:therapy; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D007223:Infant; D007890:Leiomyosarcoma / Q000151:congenital* / Q000473:pathology / Q000628:therapy; D009364:Neoplasm Recurrence, Local
vernacular_title: Leiomiosarcoma perianal congénito. Presentación de un caso.