Fig. 29

Lymphocytic hypophysitis in a 16-year-old boy who presented with frequent urination, which started when he was 9. Coronal T1WI (a) shows thickening of the pituitary stalk which has intermdiate signal. Post-contrast axial (b) and sagittal (c) T1WI shows thickening of the pituitary stalk with homogeneous enhancement