PMC6726879_01
Abdominal CT revealed that the wall thickness of the rectum showed extensive invasion of the bladder wall (arrow). CT, computed tomography.
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Abdominal computed tomography revealed that the wall thickness of the rectum showed extensive invasion of the bladder wall and enlarged regional lymph nodes (Fig. 1).
Abdominal CT after chemotherapy revealed that the tumor size was markedly decreased and extensive invasion between the rectal tumor and bladder wall was not observed (arrow). CT, computed tomography.
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Furthermore, extensive invasion between the rectal tumor and bladder wall was not observed (Fig. 2).
Resected specimen from the anterior resection showing a fibrous scar in the rectum.
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Histologically, a fibrous scar was observed at the level of the previously documented tumor, and histological examination of the surgical specimen did not reveal any viable cancer cells in the rectal wall or in the mesorectum (Fig. 3, Fig. 4a, b).