Community Medicine (PSM) · Occupational Health and Legislation (ESI, Factories Act)

A shipyard worker with 20 years of asbestos exposure presents with pleural effusion, calcified pleural plaques on X-ray, and normal lung parenchyma. He has no dyspnoea at rest. This presentation is most consistent with:

  • A Asbestosis (interstitial pulmonary fibrosis from asbestos)
  • B Malignant mesothelioma (early stage)
  • C Caplan syndrome
  • D Benign asbestos pleuritis (pleural disease without parenchymal fibrosis)
Correct answer: D. Benign asbestos pleuritis (pleural disease without parenchymal fibrosis)

Explanation

Benign asbestos pleuritis or asbestos-related pleural disease refers to bilateral calcified pleural plaques and/or effusion with preserved parenchyma—distinct from asbestosis, which involves lower lobe parenchymal fibrosis with honeycombing. Calcified pleural plaques are the most common asbestos-related finding and represent parietal pleural fibrosis; they are often asymptomatic. Mesothelioma typically causes a progressive exudative unilateral pleural effusion with pleural thickening. Caplan syndrome = rheumatoid nodules + coal worker's pneumoconiosis.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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