Case Report
Copyright ©The Author(s) 2022.
World J Clin Cases. Jan 21, 2022; 10(3): 1122-1130
Published online Jan 21, 2022. doi: 10.12998/wjcc.v10.i3.1122
Figure 1
Figure 1 Imaging documented the anal mass (see orange arrows). A: Low-density shadows on the posterior edge of the anal canal in computed tomography; B and C: magnetic resonance imaging showed increased signal in anal tissue.
Figure 2
Figure 2 Pathology of anal mass. A: Histology showed moderately differentiated adenocarcinoma, as orange arrow marked; B and C: Pathological staining for CK7 (B) and CK20 (C), with orange arrows marking negative and positive staining.