Lacking of better names we use these simplistic definitions to encompass melanocytic neoplasms which are by and large the most common nevi encountered in routine practice: lentigo simplex, junctional nevus, compound nevus and intradermal nevus. These lesions are supposed to be the progressive stages of a melanocytic neoplasm’s natural evolution. The first step is lentigo simplex characterized by the distinct proliferation of melanocytes in single units aligned along the epidermal basal layer.
KeywordsPapillary Dermis Melanocytic Nevus Balloon Cell Reticular Dermis Melanocytic Neoplasm
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