Image of the Month

A 45-year-old patient presented with a history of confusion for 2 days, right pupil dilation, ophthalmoplegia in the right eye, decreased sensation in the right side of the face, as well as unsteady gait. She was taking an immunosuppressant, following a liver transplant. To find out how imaging led to the correct diagnosis of this patient, see Image of the Month, page 20.