case_images: PMC7725546_01
case_images: A rapidly growing papillomatous verruca originating on the lip and invading the palate.
case_images: CRIDM2020-6682694.001.jpg
case_images: PMC7725546_01_CRIDM2020-6682694.001.jpg
case_images: fig1
case_images: A 61-year-old Japanese man visited our department for a verrucous formation on his lip that was growing rapidly and invading his palate (Figure 1).
case_images: PMC7725546_02
case_images: (a) Multiple flat black spots on the patient's back three months prior to admission. (b) Multiple seborrheic verruca on the patient's back on admission.
case_images: CRIDM2020-6682694.002.jpg
case_images: PMC7725546_02_CRIDM2020-6682694.002.jpg
case_images: fig2
case_images: Multiple black-colored seborrhoic verruca appeared on his back, which rapidly increased in number and size within 3 months (Figures 2(a) and 2(b)).