Usefulness of biodegradable stents constructed of poly-l-lactic acid monofilaments in patients with benign esophageal stenosis

Figure 1 The PLLA esophageal stent (Tanaka-Marui stent; Marui Textile Machinery Co. , Ltd., Osaka, Japan). A: One end of the PLLA stent was tied into a 5 mm diameter by silk sutures; B: The stent was fitted over an endoscope.

Figure 2 Endoscopic findings of the PLLA stent. A: Endoscopic findings of early esophageal cancer with iodine staining; B: The mucosal defect after ESD; C: The released PLLA stent; D: Fixation of the rostral side by endoscopic clips; and E: The view at 6 mo of follow-up.