We present EUS findings of a patient with an anorectal fistula not detected on endoscopy or physical exam. Radial EUS demonstrates the disruption of the anorectal wall along with a hypoechoic tract with echogenic beads. On linear EUS examination, a longitudinal linear tract is well seen along with the once again noted scattered echogenic beads consistent with air bubbles. These EUS findings demonstrate the presence of an anorectal fistula.
Bhavani Moparty, M.D., University of Texas Medical Branch
Manoop Bhutani, M.D., Center for Endoscopic Research, Training and Innovation, University of Texas Medical Branch