Importance Pituitary adenomas may hypersecrete hormones or cause mass effects.
Therefore, early diagnosis and treatment are important. Observations Prevalence of pituitary
adenomas ranges from 1 in 865 adults to 1 in 2688 adults. Approximately 50% are
microadenomas (< 10 mm); the remainder are macroadenomas (≥ 10 mm). Mass effects
cause headache, hypopituitarism, and visual field defects. Treatments include
transsphenoidal surgery, medical therapies, and radiotherapy. Prolactinomas account for …