Imaging Manifestations of Respiratory Diseases Associated with Connective Tissue Diseases

Respiratory manifestations of connective tissue diseases include interstitial lung diseases, diffuse alveolar injury, alveolar hemorrhage, pulmonary vascular lesions, pleural lesions and airway disease. Their clinical symptoms were not specific. Pulmonary function test and chest computed tomography come to be the most frequently applied examinations. Different connective tissue diseases involving respiratory system have not only common features but also characteristic imaging patterns. In this paper, imaging manifestations of respiratory diseases associated with connective tissue diseases were reviewed, so as to improve readers' recognition of the diseases and guide clinical practice.