Most patients complain of exertional breathlessness, however, chest pain has been also associated with this disorder.[10][11] DPT has a significant impact on pulmonary function, causing a decrease in forced vital capacity, reducing total lung capacity and diffusing capacity.[10][13] The restrictive impairment is a result of adhesions of the parietal with the visceral pleura as well as possible diaphragmatic involvement. Medical imaging is needed for diagnosis of diffuse pleural thickening. The appearance on a postero-anterior chest radiograph is of a continuous, irregular pleural shadowing.