Environment & Occupational Health · NEET PG Preparation Community Medicine (PSM)
A 35-year-old stonecutter presents with progressive shortness of breath and dry cough. Chest radiograph shows multiple small, rounded opacities (nodu…
Practice question from Environment & Occupational Health (NEET PG Preparation Community Medicine (PSM)), with the correct answer and a step-by-step solution.
easy · MCQ · Q-D7560F
A 35-year-old stonecutter presents with progressive shortness of breath and dry cough. Chest radiograph shows multiple small, rounded opacities (nodules) predominantly in the upper lung zones, along with a 'egg-shell' calcification of hilar lymph nodes. High-resolution CT confirms pulmonary fibrosis. Which of the following is the hallmark pathological lesion of this condition?
- A.Ferrugenous bodies
- B.Silicotic nodule (hyalinized collagen fibers)Correct answer
- C.Asbestos bodies
- D.Caseating granuloma
Solution
The hallmark lesion of silicosis is the silicotic nodule, characterized by concentric whorls of hyalinized collagen fibers surrounded by free dust and macrophages.
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