Pituitary microadenoma

Case contributed by Assoc Prof Frank Gaillard

Presentation

Galactorrhea.

Patient Data

Age: 50 years
Gender: Female

Centered within the right aspect of the pituitary gland is a rounded hypo-enhancing lesion measuring 8 x 6 x 6.5 mm. Pituitary tissue is elevated upwards only 1 mm, away from the right side of the optic chiasm, which is not yet contacted or compressed. The infundibulum remains deviated towards the left. There is no evidence of invasion of the cavernous sinuses.

Pituitary function tests were performed in this case and demonstrated elevated prolactin levels and otherwise normal pituitary function. 

Case Discussion

This case illustrates typical appearances of a sizable microadenoma. The patient was placed on bromocriptine and the lesion has minimally reduced in size, and pituitary function has remained largely unaltered. 

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