Preoperative Assessment of Adult Patients for Intracranial Surgery

Table 2

Pituitary tumors and frequency of occurrence.

Pituitary tumor	Hormone secreted	Frequency of occurrence
Prolactinoma	Prolactin	20–30%
Cushing’s disease	Adenocorticotropic hormone	10–15%
Acromegaly	Growth Hormone	5–10%
Gonadotroph	Follicle stimulating Hormone/Lutenising hormone	5%
Thyrotropic	Thyroid Stimulating Hormone	<3%
Mixed cell adenoma	None	20–30%
Nonfunctioning adenomas	None	20%