Azygos Lobe of the Right Lung

Abstract

The peculiar inverted comma-like shadow occasionally seen in the right upper lobe remained a puzzle to roentgenologists until the postmortem studies of Bendick and Wessler (1) determined the exact nature of this anomaly. Recently we have had an opportunity to make a postmortem examination of a patient with an azygos lobe which differed in some respects from those of other observers. Instead of an inverted comma-like line alone, the area corresponding to the usual position of the azygos lobe was found to consist of a uniformly dense shadow suggesting consolidation, but which proved upon examination to be free from any abnormal changes. G. C, male, aged 81 years, entered the Jewish Hospital suffering from a rapidly progressing arteriosclerotic type of gangrene of the left lower extremity. On the eighth day post-admission the symptoms and signs of a hypostatic pneumonia developed, more marked in the left lung. Roentgen examination of the chest (Fig. 1) revealed a pneumonic consolidation of the left lung, and...