Embryonal rhabdomyosarcoma of the middle ear.
D002675:Child, Preschool; D003937:Diagnosis, Differential; D004428:Ear Neoplasms / Q000175:diagnosis / Q000473:pathology*; D004432:Ear, Middle / Q000196:embryology / Q000473:pathology; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D009210:Myofibrils; D012208:Rhabdomyosarcoma / Q000175:diagnosis / Q000473:pathology*