Thrombosis of the Inferior Vena Cava Following Physical Exertion

During the past year we have had the opportunity to observe a case of obstruction of the inferior vena cava from shortly after the onset of the condition to the establishment of an apparently adequate collateral circulation. Because of the rarity of the condition and the unusual etiology, the case seems worth reporting. REPORT OF CASE A white girl aged 20, a physical education student, consulted the University of Wisconsin Health Service on Nov. 6, 1940 because of edema of the legs and enlarging abdominal veins. She had been well until July 29, 1940, when while tumbling she did a back flip. At this time she felt something pull in the lower part of the back. There was little discomfort, however, until two days later, at which time there was aching in the small of the back, particularly when she was in the recumbent position, which was somewhat relieved by