Figure 3.

Radiographic images. A: Stricture of the distal sigmoid colon outlined by luminal filling with barium using a rectal catheter (supine position); B: Biodegradable stent in situ immediately after insertion (supine position). The stent is radiolucent, but the radiopaque markers at the midpoint and at the ends are visible (black arrows). The margins of the stricture are marked with lipiodol (white arrows); C: Disappearance of radiopaque markers at 4 mo confirming complete stent degradation (erect position).