Contrast-enhanced computed tomography findings of a huge perianal epidermoid cyst: A case report

Figure 3 Histopathological findings. A: The specimen was found to be a greyish-red cystic mass; B: The cyst wall was 40-60 μm thick and was lined with stratified squamous epithelium, which had distinct granular layers (H&E staining, ×200). The cavity of the cyst was filled with layered uniform red-stained keratin.