The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.
You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).
(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.
Fig. 3F —Sonography of normal anal canal in three patients. A
and B are transanal scans obtained with biplane 9-MHz transducer,
C and D were obtained on curved transducer, and E and
F were obtained at anorectal junction with traditional end-fired
transvaginal probe. At anorectal junction of same patient as in E, thin
muscularis propria thickens and becomes more roundappearing internal anal
sphincter (IS). External anal sphincter (arrowheads) appears at this
level as echogenic, rather poorly marginated sling-like structure around
posterior aspect of anal canal. There is no sphincter defect.
