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Dovetail sign suggesting underlying anal sphincter laceration
Dovetail sign suggesting underlying anal sphincter laceration
Note the absence of anal folds along the perineal aspect of the sphincter, which suggests that the external anal sphincter at least partially separated.
Courtesy of Milena M Weinstein, MD, FACOG, FPMRS, and Helai Hesham, MD.
Graphic 116308 Version 2.0
