Local advanced rectal cancer perforation in the midst of preoperative chemoradiotherapy: A case report and literature review

Figure 2 Rectal tumor perforation suggestive of chemoradiationdamage. Radiotherapy was delivered to the whole pelvis through three (one posterior-anterior and two lateral) or four (one anterior-posterior, one posterior-anterior and two lateral) fields using a 10-MV linear accelerator in the prone position (A); Coronal computed tomography findings showed a small bubble of extra-luminal gas (red arrow) (B); Preoperative colonoscopicfindings for radical surgery showed excavation with mucosa necrosis (red arrow) suggestive of chemoradiationdamage in the rectal tumor (C).