case_images: PMC11825901_01
case_images: Clinical picture showing the ulceroproliferative lesion on the right retromolar trigone
case_images: cureus-0017-00000077450-i01.jpg
case_images: PMC11825901_01_cureus-0017-00000077450-i01.jpg
case_images: FIG1
case_images: It was well-defined on the posterior margin but ill-defined in the antero-inferior region (Figure 1).
case_images: Photomicrograph showing malignant epithelial islands in the stroma along with numerous clear cells (H&E, 10x). H&E: hematoxylin and eosin
case_images: cureus-0017-00000077450-i02.jpg
case_images: PMC11825901_01_cureus-0017-00000077450-i02.jpg
case_images: FIG2
case_images: Focal areas of necrosis and hemorrhage were also evident (Figure 2).
case_images: Photomicrograph showing focal positivity to CK8/CK18 (IHC, 10x). IHC: immunohistochemistry
case_images: cureus-0017-00000077450-i03.jpg
case_images: PMC11825901_01_cureus-0017-00000077450-i03.jpg
case_images: FIG3
case_images: IHC showed strong immunopositivity for CK8/CK18 (Figure 3) and AE1/AE3 while negative for vimentin, HMB45, and S100.