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Asbestosis — RACP Adult Medicine MCQ

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ModerateRespiratoryAsbestosisRACP Adult Medicine

A 65-year-old retired shipyard worker presents with progressive dyspnoea. HRCT shows bilateral lower-lobe predominant reticular opacities with pleural plaques and a small left pleural effusion. What is the most likely diagnosis?

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Correct answer: D — Asbestosis

Lower-lobe predominant reticular opacities with pleural plaques in a former shipyard worker is classic for asbestosis. Pleural plaques are the hallmark of asbestos exposure and may occur with or without parenchymal disease. The latency period is typically 15–20 years. Patients require ongoing surveillance for mesothelioma.

Reference: Safe Work Australia – 2024 – Occupational Lung Disease