PMC7576341_01
This photograph shows the ulcer located on the plantar surface of the right heel measuring 1 x 1.5 cm. The edges of the ulcer were raised, and the base was necrotic and bled easily on contact.
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By September 2019, multiple dark spots were noted in the ulcer margin (Figure 1).
A section of the dermis from the right heel showing fascicles of focally pigmented spindle cells (H&E x200).
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Mitotic figures were not identified, but nests of nevus cells were noted adjacent to the lesion (Figure 2).
Pan melanoma markers of the right heel biopsy.
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SOX10 immunohistochemical staining of the right heel biopsy showing strong nuclear staining.
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