title: Mediastinal dermoid presenting with massive haemoptysis.
mesh_terms: D002648:Child; D003884:Dermoid Cyst / Q000150:complications* / Q000601:surgery; D006469:Hemoptysis / Q000209:etiology*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications* / Q000601:surgery