Fig. 7From: Squamous cell carcinoma around a subperiosteal implant in the maxilla and the association of chronic mechanical irritation and peri-implantitis: a case reportHistopathologic examination following hematoxylin–eosin staining shows well-differentiated squamous cell carcinoma, which was highly keratinized (A). The epithelium shows widespread ulceration and extensive infiltration of the stroma (B) and bone (C)Back to article page