CMML Cardiac — RACP Adult Medicine MCQ

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HardHaematologyCMML CardiacRACP Adult Medicine

A 62-year-old man with CMML (monocytes 15 × 10⁹/L) develops troponin rise with normal coronary arteries. Most likely cardiac diagnosis?

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Correct answer: C — Coronary microvascular dysfunction from monocyte-mediated inflammation

CMML monocytosis → vessel wall infiltration → coronary microvascular disease. Emerging cardio-oncology entity.

Reference: eTG – 2025 – Haematology; ESC – 2022