Description: Location, inferior lesion is junctional lentiginous dysplastic naevus, melanoma superior

History: This 79 year old woman has had 9 previous melanomas. Two lesions marked for biopsy, lesion in question superior. Histology was reported as — Sections show a few nests of superficial basal cell carcinoma admixed with a very focal level 2 (0.3mm thick) lentigo maligna melanoma. It is arising in a larger in situ lesion. There is no ulceration or dermal mitoses. There is a mild lymphocytic infiltrate but little regression.