Pituitary Tumour

Pituitary tumour pathogenesis.

Pituitary adenomas are the most common tumours in the central nervous system, make up approximately 10% of all primary intracerebral tumours [1] and are found incidentally in 3-27% of autopsies [2]. The predisposition to tumour formation of the highly specialized cellular phenotypes that characterize the anterior pituitary is unexplained, but it is tempting to speculate that the same hormones, ...

Pituitary-hypothalamic Tumour Syndromes: Adults

Space Occupying Lesions in the hypothalamic/pituitary region include tumours derived from endocrine or neural tissues, as well as a wide spectrum of more uncommon conditions such us inflammatory processes or metastases. The clinical expression of these lesions depends not only of their nature, but also on the size and position of the lesion, with some common patterns that can lead the clinician...

Angioid Streaks in Pituitary Tumour.

IN recent years there have been many references to angioid streaks of the retina found in association with pseudoxanthoma elasticum and Paget's disease of bones (Elwyn, 1953; Cowper, 1954; Bedrossian, 1958; Hogan and Zinmerman, 1962). A review of the current literature on angioid streaks and on brain tumours revealed no cases of angioid streaks in patients who presented with ocular manifestatio...

Large suprasellar aneurysms imitating pituitary tumour.

Two patients had large (20--30 mm) suprasellar aneurysms with clinical findings resembling an expanding pituitary tumour. One aneurysm was giant (30 mm). Its delayed diagnosis for six years led to severe chiasmal compression. The other aneurysm was compressing the optic nerve. Visual improvement resulted after surgery.

Lactation associated with a pituitary tumour in a man.