The majority of pituitary microadenomas—tumors in the pituitary gland that measure less than 10 mm—either remained the same or decreased in size over time, according to magnetic resonance imaging (MRI) results from 177 patients during a study period spanning 2003 to 2021. Of the 28% of pituitary microadenomas that increased in size, their rate of growth was slow and only 1.7% grew to more than 10 mm.
Source: JAMA Online First