A 65-year-old patient with a history of exposure to metal dust comes in to the emergency de-partment with chronic cough and exertional dyspnea
HRCT shows bibasilar, peripheral reticular abnormalities with focal honeycomb cystic changes. What is the most likely diagnosis?
a. Asbestosis
b. Coal worker's pneumoconiosis
c. Idiopathic pulmonary fibrosis
d. Sarcoidosis
ANS: C
Risk factors for development of idiopathic pulmonary fibrosis include exposure to smoke, metal dust, farming dust, and hairdressing chemicals. Patients present with chronic cough and exer-tional dyspnea with HRCT demonstrating bibasilar, peripheral reticular abnormalities with focal honeycomb cystic change.
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