Case Report
Copyright ©The Author(s) 2022.
World J Clin Cases. Sep 26, 2022; 10(27): 9776-9782
Published online Sep 26, 2022. doi: 10.12998/wjcc.v10.i27.9776
Figure 3
Figure 3 Histopathological and immunohistochemical results. A-B: Hematoxylin and eosin staining showed the irregular surface of the swelling, non-keratinized epithelium without Bowman’s layer, and dense fibrous connective tissue with blood vessels beneath the epithelium; C: Vimentin staining was diffusely positive within the parenchyma of the mass; D: Smooth muscle actin staining was positive in the smooth muscle walls of the vasculature and myofibroblasts.