title: Haemorrhagic pituitary tumours.
abstract: In a group of 69 patients with pituitary tumours, 12 were found to have evidence of intratumoral haemorrhage on MRI, characterized by high signal intensity on short TR/TE sequences. This was verified in all but 1 patient. The majority of the bleedings occurred in macroadenomas. Five (42%) were prolactinomas and 4 (33%) were non-functioning adenomas. There were 2 GH- and 1 ACTH-secreting tumours. All 5 patients with prolactinomas were on bromocriptine medication. Two of the patients had a clinical picture of pituitary apoplexy. The haemorrhage was not large enough to prompt surgery in any of the patients. However, surgical verification of the diagnosis was obtained in 5 cases, while 6 patients were examined with follow-up MRI.
authors.affiliation: Department of Neuroradiology, Karolinska Sjukhuset, Stockholm, Sweden.
authors.forename: C M
authors.initials: CM
authors.lastname: Lazaro
authors.forename: W Y
authors.initials: WY
authors.lastname: Guo
authors.forename: M
authors.initials: M
authors.lastname: Sami
authors.forename: T
authors.initials: T
authors.lastname: Hindmarsh
authors.forename: K
authors.initials: K
authors.lastname: Ericson
authors.forename: A L
authors.initials: AL
authors.lastname: Hulting
authors.forename: J
authors.initials: J
authors.lastname: Wersäll
mesh_terms: D000236:Adenoma / Q000098:blood supply / Q000473:pathology*; D000328:Adult; D000368:Aged; D005260:Female; D006470:Hemorrhage / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000098:blood supply / Q000473:pathology*