Diagram
Acute marginal an...
Acute marginal angles or shouldering sign may disappear proximally because of its dilatation.
Modality: Diagram

- “ Annular constricting types of colon on barium studies usually are the shortest filling defects among colon tumors. Initially they invade unilatera...”

Used in the following article:

  • Apple core sign (colon) - “ The apple core sign, also known as the napkin ring sign (bowel), is most frequently associated with constriction of the lumen of the colon by a st...”

View full size version of Apple-core appearance of the colon

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