An Adult Case of Proximal Interruption of the Right Pulmonary Artery

Abstract

A 29 year-old male case of proximal interruption of the right pulmonary artery was reported.
He was admitted to Tenri Hospital with a complaint of bilateral shoulder pain. Laboratory examinations on admission were normal. The chest roentgenogram showed a large hypertranslucent left lung with displacement of the heart and mediastinum to the right. Vascular markings were seen throughout the right lung, but not in the usual pattern radiating from the hilu. Perfusion scan showed no perfusion of right hemithorax. The pulmonary angiogram showed proximal interruption of the right pulmonary artery. Cardiac catheterization revealed the absence of pulmonary hypertension. No intracardiac malformation was present. Bronchogram of the right lung showed a normal distribution of bronchi to all lobes with no signs of bronchiectasis. Selective alveolobronchogram of the right B₈ showed signs of bronchioloectasis.
Because of the absence of repeated pulmonary infections, life-threatening hemoptysis, and pulmonary hypertension, he was treated conservatively.