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Macroprolactinoma — RCPSC IM MCQ

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ModerateEndocrinologyMacroprolactinomaRCPSC IM

A 28-year-old woman has amenorrhoea, galactorrhoea, headaches, and bitemporal visual field loss. Prolactin is 4,800 micrograms/L, TSH is normal, pregnancy test is negative, and she takes no dopamine antagonist. What is the most appropriate investigation?

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Correct answer: AMRI pituitary with visual field assessment

Marked hyperprolactinaemia with mass-effect symptoms requires pituitary MRI and formal visual field assessment to evaluate a macroprolactinoma.

Reference: Canadian endocrine practice guidance