. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 452 In the case now recorded the highest of the four pulmonary veins appears to be a pulmonized bronchial vein joining the caval system at the angle of junction of the vena azygos major and the superior vena cava. The other three veins appear to be pulmonized veins of the bronchial lymphatic glands which normally are exceedingly small but which not infrequently open into the superior vena cav^a. Somewhat similar cases have been recorded by Greenfield (6), Hepburn (7) and Peacock (8). The greater interest of the specimen centr
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. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 452 In the case now recorded the highest of the four pulmonary veins appears to be a pulmonized bronchial vein joining the caval system at the angle of junction of the vena azygos major and the superior vena cava. The other three veins appear to be pulmonized veins of the bronchial lymphatic glands which normally are exceedingly small but which not infrequently open into the superior vena cav^a. Somewhat similar cases have been recorded by Greenfield (6), Hepburn (7) and Peacock (8). The greater interest of the specimen centres, however, in the fact that the superior vena cava opens practically equally into the two auricles, the heart and the great vessels being otherwise normal. In order that this abnormality'might occur it is necessary either that some primary failure or secondary fenestration of the sep- tum secundum occurred or else that there was a separation of the sep- tum from the auricular wall and a secondary movement of the wall. A failure or secon- dary fenestration of the septum secundum is rare. Cases of this type have been recorded by Griffith (9), Greenfield (6), Hepburn (7), Bir- mingham (10), Thiele (11), and Symington(12), [compare also Blondel (13)]. A specimen showing this abnormality was recently obtained in this dissecting room. It is shown in Fig. 4. The contrast between it and the heart shown in Fig. 1 is marked. In the latter the inter-. Fig. 4. Heart showing inter-auricular foramen superior to the fossa ovalis. The right ventricle is enormously increased.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Anatomische Gesellschaft. Jena : G. Fischer