HEMORRHAGIC PITUITARY-TUMORS

In a group of 69 patients with pituitary tumours, 12 were found to hav e evidence of intratumoral haemorrhage on MRI, characterized by high s ignal intensity on short TRITE sequences. This was verified in all but 1 patient. The majority of the bleedings occurred in macroadenomas. F ive (42%) were prolactinomas and 4 (33%) were non-functioning adenomas . There were 2 GH- and 1 ACTH-secreting tumours. All 5 patients with p rolactinomas were on bromocriptine medication. Two of the patients had a clinical picture of pituitary apoplexy. The haemorrhage was not lar ge enough to prompt surgery in any of the patients. However, surgical verification of the diagnosis was obtained in 5 cases, while 6 patient s were examined with follow-up MRI.