Nasopharyngeal haemangiopericytoma in a child.
D002648:Child; D003680:Deglutition Disorders / Q000209:etiology; D006393:Hemangiopericytoma / Q000150:complications / Q000473:pathology*; D006801:Humans; D008297:Male; D009303:Nasopharyngeal Neoplasms / Q000150:complications / Q000473:pathology*; D012131:Respiratory Insufficiency / Q000209:etiology