The lung pathology occurring in persons working in cotton- wool industries is: (A) Asthma like features, (B) Hypersensitivity pnemonitis, (C) Lung Ca, (D) Chronic bronchitis
Answer is A. Ans. (a) Asthma like features(Ref: Robbins 9th 689)In 10-25% cases, disease may be progressive, with chest tightness recurring or persisting throughout the workweek.After >10 years of exposure, workers with recurrent symptoms are more likely to have an obstructive pattern on pulmonary function testing.