case_images: PMC2266766_01
case_images: Photograph of an indurated, crusted lesion with central ulceration giving the lip a bitten off appearance.
case_images: 1752-1947-2-29-1.jpg
case_images: PMC2266766_01_1752-1947-2-29-1.jpg
case_images: F1
case_images: Physical examination showed a painless, firm, indurated, crusted area of 4 cm with central ulceration giving the lip a bitten off appearance (Figure 1).