HISTORY OF PRESENT ILLNESS: , This is a 91-year-old male with a previous history of working in the coalmine and significant exposure to silica with resultant pneumoconiosis and fibrosis of the lung. 
HISTORY OF PRESENT ILLNESS : , This is a 91 - year - old male with a previous history of working in the coalmine and significant exposure to silica with resultant pneumoconiosis and fibrosis of the lung .