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Copper Deficiency Myeloneuropathy — RACP Adult Medicine MCQ

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HardNeurologyCopper Deficiency MyeloneuropathyRACP Adult Medicine

A 55-year-old woman with copper deficiency after bariatric surgery has myeloneuropathy. MRI shows dorsal column signal. Copper undetectable, caeruloplasmin low. Diagnosis?

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Correct answer: E — Copper deficiency myeloneuropathy

Copper deficiency causes myeloneuropathy identical to B12 deficiency. Occurs post-bariatric surgery, with zinc excess. Haematological: sideroblastic anaemia, neutropaenia.

Reference: eTG – 2025 – Neurology; ANZOS – 2024