CASE 92 History: A 51-year-old woman with low back pain for the past 2 years presents with cauda equina syndrome. 1. What should be included in the differential diagnosis? (Choose all that apply.) a. Metastasis b. Meningioma d. Lymphoma e. Chordoma 2. What percentage of chordomas originate in the sacrococcygeal region? a. 90% b. 50% c. 35% d. 15% 3. Which of the following statements regarding sacral chordomas is true? a. Sacral chordomas are typically midline in location. b. Sacral chordomas usually extend posteriorly. c. Most sacral chordomas invade the rectum. d. Sacral chordomas are more common in women than in men.
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