Fig. 4
From: Pituitary apoplexy: an update on clinical and imaging features
The figure shows an oval-shaped, haemorrhagic lesion within a pituitary adenoma, homogeneously hyperintense on both T1- and T2-weighted images (WI) (a), with a hypointense rim on T2WI (b, white arrow). Contrast-enhanced T1WI (c) shows strong, homogeneous enhancement of the pituitary gland and stalk, both displaced by the tumour