Figure 1
From: Pituitary hyperplasia secondary to acquired hypothyroidism: case report
A-E. Pretreatment sagittal (A, B) and coronal (C-E) T1-weighted MR images show diffuse enlagement of the pituitary gland, that extends into the suprasellar cystern with mild compression of the optic chiasm and of the posterior neurohypophyseal lobe, which keeps its normal bright signal. After intravenous Gadolinum administration (B, D) the mass demonstrate homogeneous enhancement; the pituitary stalk (E) is raised but still along the midline.