Description: Macroscopically this can only be melanoma

History: 49 year old man with past history of several BCCs, not seen for 3 years. New lesion on back, patient not aware of. Histology reported as; Sections show regressing level 2 superficial spreading malignant melanoma arising in dysplastic naevus, and characterised by pigmented atypical melanocytes infiltrating epidermis in a pagetoid pattern, and focally into the papillary dermis in association with signs of regression. There are no mitoses or ulceration. TUMOUR THICKNESS 0.63MM