CASE 103 History: A 48-year-old woman presents with back pain and bilateral lower extremity weakness. 1. What should be included in the differential diagnosis? (Choose all that apply.) a. Dermoid cyst c. Ependymoma d. Astrocytoma e. Ventriculus terminalis cyst 2. Which of the following statements regarding cystic ventriculus terminalis is true? a. It is typically found in the midthoracic cord. b. Pulsatile cerebrospinal fluid (CSF) flow is typically seen on cine images. c. No ependymal lining is found on pathologic examination. d. The cyst is typically larger in diameter in adults than in children. 3. Cystic dilatation of the ventriculus terminalis in children may be associated with all of the following congenital anomalies except:
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