title: Study of hilar masses by angiocardiography.
mesh_terms: D000328:Adult; D000790:Angiocardiography; D006332:Cardiomegaly / Q000000981:diagnostic imaging*; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*