Fig. 17.

Postoperative complication: haemorrhage and infarct. A 52-year-old male with a large pituitary macroadenoma (bracket). Postoperative imaging after gross resection demonstrates haemorrhagic enlargement of the residual component of the adenoma consistent with apoplexy (arrow). There is also intraventricular extension of haemorrhage (arrowheads). Follow-up MRI demonstrates right anterior cerebral artery (ACA) territory infarction due to mass effect on the right ACA from the enlarged haemorrhagic pituitary adenoma