A Photo Quiz to Hone Dermatologic Skills

摘要

All of the above choices were reasonable diagnoses. Therefore, the next step is to do a skin biopsy before proceeding with treatment. Note: Lentigo maligna is usually more variegated in color and pig-mented basal cell carcinoma usually has textural changes.In the majority of the cases, a collision between a nonpigmented solar keratosis and a separate coexistent pigmented lesion, primarily a solar lentigo, accounts for the pigmentation in pigmented actinic keratoses rather than from any fundamental changes in the quantity or quality of the melanocytes.