Abstract
We present the case of a 27-year-old female who had a history of recurrent headaches and visual disturbances. Magnetic resonance imaging of the brain showed a lesion that suggested pituitary adenoma, with indications of a recent bleeding or cystic degeneration. Nonhormonal deficiencies were documented, restricted to nontumoral hyperprolactinemia. Transsphenoidal approach surgery was performed and the purulent material was drained, confirming the diagnosis of pituitary abscess. Sinusitis was considered to be the only possible cause of this condition. Empirical treatment to Gram-positive anaerobic cocci was administrated, with a satisfactory response.