A CASE OF SACRAL CHORDOMA

Abstract

Chordoma is a comparatively rare malignant tumor arising from remnants of the notochord. A 66-year-old man was admitted to the hospital because of a tumor of the sacral region. The tumor was elastic hard. The patient had no tenderness. A abdominal CT and magnetic resonance imaging scans visualized a tumor 12cm in diameter extending from the coccyges to pelvic cavity. It was diagnosed as chordoma by biopsy. An extirpation of the tumor with the fifth sacrum was performed. On pathologic examination, there were no tumor cells on the surgical margin and no sacrum invasion. No neurological disfunction occurred after the operation.