Looking beyond the Sella: Suprasellar Infundibular Prolactin
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Typically, pituitary adenomas are intrasellar in location, but infrequently, pituitary tumours may occur ectopically within pituitary rests. A pituitary tumour is considered ectopic when the adenoma has no communication with the intrasellar pituitary gland. This is a case report of a 24-year-old female who presented with galactorrhoea and elevated serum prolactin levels of 150 ng/mL. The intrasellar pituitary gland demonstrated normal morphology and characteristic enhancement. The pituitary stalk was thickened and revealed a non-enhancing lesion on dynamic contrast imaging, which was interpreted as a functioning microadenoma. The patient exhibited significant clinical improvement after initiation of therapy with a dopamine agonist, Cabergoline.

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