| Felson, Benjamin | <person> U.S. Radiologist, 1913-1988. See: silhouette sign of Felson. (05 Mar 2000) |
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| silhouette sign of Felson | In pulmonary radiology, the obliteration of a normal air-soft tissue interface, such as the cardiac silhouette, when fluid fills the adjacent part of the lung. (05 Mar 2000) |
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