regressed melanoma
Histologic Features
- Epidermal thinning
- A focal proliferation of atypical melanocytes in single units or nests at the basal layer
- Thickened papillary dermis with fibroplasia, an increased number of dilated blood vessels, numerous melanophages, and variable numbers of lymphocytes in the dermis
- Delicate fibroplasia (unlike the laminated, coarse, fibroplasia of dysplastic nevi)
Updated Wednesday, July 31, 2013 8:30:48 PM