Subpulmonic Stenosis as a Result of Noncalcific Constrictive Pericarditis

The clinical, electrocardiographic, and radiologic features in a patient with a pericardial band which produced an unusual form of infundibular pulmonary stenosis are presented. The findings are unique in that the band was not calcified and, therefore, not visualized roentgenographically and developed without a previous history of pericarditis or pericardial surgery. The diagnostic value of cineangiography is stressed and illustrated.