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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Inflamm Bowel Dis. 2010 Mar;16(3):461–468. doi: 10.1002/ibd.21067

Figure 1.

Figure 1

Representative series of EUS images from a 15-year-old boy with CD who presented with purulent drainage from the base of his left hemiscrotum unresponsive to azathioprine and metronidazole. (A) Baseline EUS revealed an echodense fistulous tract (arrow) flanked by wide areas of echolucency (arrowheads) indicating significant peri-tract inflammation. (B) Follow-up EUS four months after seton placement and after two doses of infliximab demonstrated persistent peri-seton inflammation (arrows). The seton was left in place, and (C) repeat EUS after 3 months and two additional doses of infliximab showed decreased peri-seton inflammation, as evidenced by an increased heterogeneity of the echotexture surrounding the seton (arrowheads). The seton was removed. Except for scant recurrence of drainage six months later, which responded to increased infliximab frequency, the patient remained well through 16 months of follow-up.