Shmoo sign
Shmoo sign refers to the appearance of a prominent, rounded left ventricle and dilated aorta on a plain PA chest radiograph giving the appearance of Shmoo, a fictional cartoon character in the comic strip Li'l Abner, which first appeared in 1948 . This sign is indicative of left ventricular enlargement.
History and etymology
According to Larry Elliott (1931-2016) , a cardiovascular radiologist from the University of Florida, it was one of his teachers, Lewis Carey, a radiologist from the University of Minnesota who first described this sign .
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