Key result
Lung scanning successfully identified the pathophysiology of extensive tumor embolism in a case where pulmonary arteriography failed to demonstrate vessel occlusion.
Lung scanning can be instrumental in diagnosing tumor embolism when pulmonary arteriography fails to show vessel occlusion.
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May warrant lung scanning for suspected tumor embolism with negative arteriography; leaves open prospective validation of diagnostic utility.
An unusual case of extensive tumor embolism is reported on which the lung scan was instrumental in demonstrating the underlying pathophysiology. Pulmonary arteriography failed to demonstrate vessel occlusion and the need to perform this study with special care is re-emphasized. A brief review of the literature indicates that tumor embolism occurs much more frequently than is clinically suspected.
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Boudreau et al. (1982) studied this question. Lung scanning successfully identified the pathophysiology of extensive tumor embolism in a case where pulmonary arteriography failed to demonstrate vessel occlusion.
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