Sacrococcygeal chordoma--two cases with unusual features.
D000328:Adult; D002675:Child, Preschool; D002817:Chordoma; D005260:Female; D005598:Fractures, Spontaneous / Q000209:etiology; D006801:Humans; D012445:Sacrococcygeal Region; D012447:Sacrum; D012883:Skin Ulcer / Q000209:etiology