Asbestosis is caused by inhalation of asbestos fibres. The pathognomonic radiological finding is:

• A Bilateral upper lobe fibrosis with eggshell calcification
• B Central ground glass opacification
• C Unilateral pleural effusion with mediastinal shift
• D Bilateral lower lobe interstitial fibrosis with pleural plaques ✓

Explanation

Asbestosis presents with bilateral lower lobe interstitial fibrosis (due to heavy asbestos deposition in lower lobes) and pathognomonic pleural plaques (hyalinized calcified pleural plaques on diaphragm and posterolateral chest wall). Eggshell calcification of hilar lymph nodes is characteristic of silicosis, not asbestosis.

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

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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