Pituitary adenomas result in clinical sequelae and accelerated mortality due to central mass
effects or pituitary hormone hypersecretion and/or insufficiency. The low annual incidence …

Pituitary tumors are not rare if prevalence rates from autopsy or radiological series are
considered; approximately 0.5% of all pituitary adenomas will come to medical attention …

BACKGROUND Pituitary adenomas display an array of hormonal and proliferative activity.
Once primarily classified according to size (microadenomas,< 1 cm; macroadenomas,≥ 1 …

Importance Pituitary adenomas are neoplasms of the pituitary adenohypophyseal cell
lineage and include functioning tumors, characterized by the secretion of pituitary hormones …

Importance Pituitary adenomas may hypersecrete hormones or cause mass effects.
Therefore, early diagnosis and treatment are important. Observations Prevalence of pituitary …

Prolactinomas and nonfunctioning pituitary adenomas are the most frequent subtypes of
clinically relevant adenomas, followed by acromegaly and Cushing's disease. The incidence …

Abstract Background and Objective: In 2004, the World Health Organization defined atypical
pituitary adenomas as those with a Ki-67 expression> 3%, an excessive p53 expression and …

Secreting pituitary adenomas that cause acromegaly and Cushing's disease, as well as
prolactinomas and thyrotroph adenomas, are uncommon, usually benign, slow-growing …

Prolactinomas and nonfunctioning adenomas are the most common types of pituitary
adenomas. Patients with pituitary adenomas may present initially with symptoms of …

Context: Prevalence data are important for assessing the burden of disease on the health
care system; data on pituitary adenoma prevalence are very scarce. Objective: The objective …