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

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 …

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 …

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 …

Pituitary adenomas are usually benign monoclonal tumours presenting either due to
hypersecretion of pituitary hormones, and/or due to local space occupying effects and …

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 …

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

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

Objectives The main purpose of this study was to estimate the incidence rate and
prevalence of clinically relevant pituitary adenomas (PAs) within the Hospital Italiano …

The WHO categorizes pituitary tumours as typical adenomas, atypical adenomas and
pituitary carcinomas, with typical adenomas constituting the major class. However, the WHO …