case_images: PMC9897908_01
case_images: SC at low power (4x magnification) shows a large multinodular tumor invading the dermis with diffuse overlying ulceration present.
case_images: CRIDM2023-6944296.001.jpg
case_images: PMC9897908_01_CRIDM2023-6944296.001.jpg
case_images: fig1
case_images: A deep shave biopsy of the lesion revealed nearly complete epidermal ulceration with replacement by an in-situ and diffusely infiltrative, atypical-appearing clear cell tumor (Figure 1).
case_images: SC at high power (20x magnification) shows marked cytologic atypia, abundant clear-staining cytoplasm, and numerous mitotic figures.
case_images: CRIDM2023-6944296.002.jpg
case_images: PMC9897908_01_CRIDM2023-6944296.002.jpg
case_images: fig2
case_images: Large irregular nests and lobules of atypical-appearing clear cells with abundant multivacuolated cytoplasm, nuclear indentations, and vesicular to hyperchromatic-staining nuclei made up the majority of the tumor (Figure 2).
case_images: SC with lymphatic invasion.
case_images: CRIDM2023-6944296.003.jpg
case_images: PMC9897908_01_CRIDM2023-6944296.003.jpg
case_images: fig3
case_images: Lymphovascular invasion was also present, involving multiple small vessels (Figure 3).