Eponym used to indicate an occasional radiologic finding: hyperlucency of one lung and opaque shadow on the other side. It is due to decreased vascular perfusion to the affected side and is associated with diminished ventilation. It may be associated with Fallot's tatralogy and is seen in patients with a history of recurrent pulmonary infections in childhood. Unknown cause.
- P. R. Swyer, G. C. W. James:
A case of unilateral pulmonary emphysema. Thorax, London, 1953, 8: 133-136.
- W. M. Macleod:
Abnormal transradiancy of one lung. Thorax, London, 1954, 9: 147-153.
- J. Bret:
Le syndrome de Janus.
Archives des maladies du coeur et des vaisseaux, Paris, 1956, 49: 468-472.
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