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Craniopharyngioma — SCE Endocrinology MCQ

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HardPituitaryCraniopharyngiomaSCE Endocrinology

A 67-year-old woman presents with bitemporal hemianopia. MRI shows a 2.5 cm cystic sellar lesion with suprasellar extension and calcification. She has diabetes insipidus. What is the most likely diagnosis?

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Correct answer: B — Craniopharyngioma

A cystic calcified sellar/suprasellar mass with visual field loss and diabetes insipidus suggests craniopharyngioma. Pituitary adenomas rarely cause diabetes insipidus at presentation. Management requires pituitary MDT input because treatment risks hypothalamic morbidity.

Reference: Society for Endocrinology Pituitary Guidance