PMC2718188_01
70-year-old woman with delayed colonic perforation after insertion of bare stent for rectal carcinoma.. A. Radiograph obtained before insertion of the stent shows opacified colon proximal to cancerous narrowing.. B. Radiograph obtained immediately after the insertion of the stent shows distal migration of contrast material (long arrow) through the stent (short arrow).. C. Simple radiograph of the abdomen obtained 1 month after stent placement shows a well-shaped rectal stent (long arrow) and subdiaphragmatic free gas (short arrow) due to rectal perforation. Note too the findings of paralytic ileus.
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F1
Tokyo, Japan) and a 7-Fr Headhunter catheter (Cook, Bloomington, Ind.) were assembled, and the latter was inserted through the Foley catheter. The guide wire and catheter were advanced with fluoroscopic guidance to pass through the area of obstruction (Fig. 1A). To define the stenotic area and to rule out colonic perforation, nonionic contrast material was flushed through the catheter. After stent insertion, the patient expelled both gas and contrast media (Fig. 1B). Chest PA and plain radiographs of the abdomen revealed the presence of huge amounts of free air in subphrenic areas, thus suggesting perforation of the hollow viscus (Fig. 1C).