pulmonary disorders
Coal Worker Pneumoconiosis
Diagnosis of Coal Worker Pneumoconiosis
History of coal mining exposure Chest CT or x-ray Diagnosis of coal worker pneumoconiosis is based on a history of coal mining exposure and chest x-ray or CT appearance consistent with coal worker pneumoconiosis whether or not the patient is symptomatic. Chest CT or x-ray reveals diffuse, small, rounded opacities or nodules in patients with simple coal worker pneumoconiosis. Chest CT is more sensitive and specific than chest x-ray for detecting coalescing nodules, early progressive massive fibrosis, emphysema, and cancer. Overview of Tests of Pulmonary Function can show obstructive, restrictive, or mixed abnormalities. Impairment of diffusing capacity for carbon monoxide (DLCO) is common. Abnormalities can be present even without radiographic findings ( 1.Go LHT, Almberg KS, Rose CS, et al. Prevalence and severity of abnormal lung function among US former coal miners with and without radiographic coal workers' pneumoconiosis.Occup Environ Med2022; 79(8), 527-532. doi:10.1136/oemed-2021-107872 