Abstract
The patient had a negative tuberculin skin test at the other hospital and gave no history of syphilis or other sexually transmitted disease, gastrointestinal symptoms, disorder of gait, or incontinence of bladder or bowel. Another MRI scan , obtained before and after the intravenous injection of gadolinium-diethylenetriamine pentacetic acid (Figure 1 ), revealed enlargement of the lateral, third, and fourth ventricles, with a flow void in the aqueduct; the hypophysis was displaced inferiorly and to the left and was compressed into the floor of the sella turcica by a multicystic suprasellar mass, 1.5 by 2.0 by 2.0 cm; the signal characteristics of the center of the mass were similar to those of cerebrospinal fluid; there was peripheral enhancement of portions of the mass after the administration of gadolinium; coronal images disclosed a questionable septum within the largest cyst; the sella turcica was not enlarged.