title: [Histological and ultrastructural observation on atrial myxomatous sarcoma--report of 1 case].
mesh_terms: D000293:Adolescent; D005260:Female; D006338:Heart Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D009232:Myxoma / Q000473:pathology* / Q000648:ultrastructure