26 January 2026
: Case report 
A 34-Year-Old Man With a Traumatic Penetrating Injury of the Buttock and Occult Retained Foreign Body Resulting in a High Anal Fistula Managed by Trans-Sphincteric Surgery
Unusual clinical course, Challenging differential diagnosis, Diagnostic / therapeutic accidents, Management of emergency care
Xianbao Liu ABCDEFG 1*, Weigan Lin CEF 2, Minhui Ke A 1, Xianmin Gao A 1, Ruoxuan Shi BCD 1DOI: 10.12659/AJCR.950448
Am J Case Rep 2026; 27:e950448
Figure 3 Axial T2-weighted MRI scan of the anal region (performed at admission to our center, November 2023). The image clearly demonstrates an abscess cavity in the left ischiorectal fossa (red circle) with a central low-signal spot. This low-signal spot was confirmed intraoperatively to be the residual bramble foreign body, and the surrounding high-signal area indicates surrounding inflammatory edema.