case_images: PMC11742071_01
case_images: Clinical findings. A solitary raised lesion with a smooth surface is visible on the hard palate.
case_images: CRID2025-5556176.001.jpg
case_images: PMC11742071_01_CRID2025-5556176.001.jpg
case_images: fig1
case_images: On his visit to our hospital, an approximately 5 mm submucosal mass was palpated on the left side of the hard palate, and the overlying epithelium of the mass appeared healthy on intraoral examination (Figure 1).
case_images: (a-d) Hematoxylin-eosin (HE) stain. Bars: (a) 500 and (b-d) 100 mum. (a) Histological examination shows a raised nodular growth covered by stratified squamous epithelium. (b) Proliferation of pale eosinophilic fibers is observed. (c) Elastica van Gieson stain shows dense and prominent elastic fibers, (d) but Masson stain shows sparse collagen fibers.
case_images: CRID2025-5556176.002.jpg
case_images: PMC11742071_01_CRID2025-5556176.002.jpg
case_images: fig2
case_images: Histopathological examination showed the proliferation of pale fibrous tissue within the submucosa and dense eosinophilic fibrous tissue at the base (Figure 2).