Pulmonary artery involvement in Takayasu arteritis: a retrospective study in Chinese population.

TA patients with pulmonary artery involvement have a longer course of disease and more symptoms of hemoptysis. TA-related pulmonary artery lesions more commonly manifested as stenosis and occlusion. Tocilizumab may be effective for TA-related pulmonary vascular disease. Key Points • Disease duration longer than 5 years is associated with pulmonary artery involvement in TA. • Hemoptysis is a characteristic clinical symptom of TA with pulmonary artery involvement. • Tocilizumab may be more effective for pulmonary artery lesions of TA.