Comparison on the Efficacy between Partially Covered Self-Expandable Metal Stent with Funnel-Shaped Enlarged Head versus Uncovered Self-Expandable Metal Stent for Palliation of Gastric Outlet Obstruction

Figure 4

Fracturing of the funnel portion of partially covered SEMS with enlarged head. Detached part of the fractured stent (arrow) is seen on plain abdominal X-ray (a). Fractured proximal end of the stent is observed along with prominent tumor ingrowth (b). The endoscopic view (c) and fluoroscopic view (d) after 2nd partially covered SEMS with enlarged-head placement show that it has been properly deployed over the 1st SEMS. The ring-shaped detached part of the fractured SEMS (arrow) (d) is being removed by rat-tooth forceps (e).

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