Spindle cell malignancy. I wish i could see more epidermis and dermal-epidermal junction. Last 2 photos appear to have in-situ melanoma but not sure. If you don't have immunostain, to establish melanoma in situ is critical in coming to the right diagnosis. If you can tell for sure those pigments are melanin, that would be diagnostic too. Unfortunately i favor melanin but cannot be sure from the photos.
Spindle cell malignancy. I wish i could see more epidermis and dermal-epidermal junction. Last 2 photos appear to have in-situ melanoma but not sure. If you don't have immunostain, to establish melanoma in situ is critical in coming to the right diagnosis. If you can tell for sure those pigments are melanin, that would be diagnostic too. Unfortunately i favor melanin but cannot be sure from the photos.