What are clinical findings of asbestosis?

Most pt are asymptomatic for 20-30 years after initial exposure, latency is inversely proportional with intensity of exposure. Earliest symptom usually is insidious dyspnea, then progresses even with no further exposure. Cough, sputum production, wheezing are unusual On PE: bibasilar fine end-inspiratory crackles and clubbing, cor pulmonale as well in advanced cases.