|
Skin – Malignant melanoma showing Melan A- immunostaining of variable intensity in tumor cells (mosaic pattern). |
|
|
Skin – Malignant melanoma with strong Melan A- positivity in all tumor cells. |
|
|
Skin – Melan A- negative basal cell carcinoma containing numerous (non-neoplastic) melanocytes. |
|
|
Skin – Melan A- negative squamous cell carcinoma. |
|