Schwannoma of the rectum: A case report and literature review

Figure 1 In case of a rectal schwannoma, the colonoscopy disclosed evidence of a little polypoid lesion in the left lateral wall of the rectum.

Figure 2 In case of rectal schwannoma, the tumor, located in the submucosa, has a nodular well-defined structure (haematoxylin and eosin, ×20). The structure that consists in proliferation of Schwann-like cells, showing a palisading arrangement (A), being marked by S-100 protein (B).