Hoffman-Rigler sign
Radiographic sign of left ventricular enlargement on lateral chest X-ray, based on LV extension behind the IVC; described by Hoffman and Rigler in 1965
Tag Hoffman-Rigler sign
Leo Rigler
Leo George Rigler (1896-1979) was an American radiologist. Eponymously affiliated with Rigler sign; Rigler triad; Rigler notch sign; Hoffman-Rigler sign