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Primary Ciliary Dyskinesia — RACP Paediatrics MCQ

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HardRespiratoryPrimary Ciliary DyskinesiaRACP Paediatrics

An 11-year-old girl has dextrocardia on CXR, chronic sinusitis, bronchiectasis, and markedly reduced nasal nitric oxide. What is the most likely diagnosis?

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Correct answer: D — Primary ciliary dyskinesia

The triad of bronchiectasis, chronic sinusitis, and situs inversus with low nasal NO is consistent with primary ciliary dyskinesia. Kartagener syndrome is the subtype with situs inversus (approximately 50% of PCD).

Reference: Thoracic Society of Australia and New Zealand – 2024 – Position Statement on Primary Ciliary Dyskinesia