This article presents abstracts of research papers presented at the thirty-fourth Annual Meeting of the American Society of Dermatopathology in San Francisco, California. Some of the topics discussed in these research papers are de-differentiated metastatic melanoma masquerading as a high grade pos, folliculocystic eccrine hamartoma, histologic features of lichen sclerosus in a surgical scar, necrobiotic xanthogranuloma, mixed merkel cell and squamous cell carcinoma of the skin and melanoma in situ and tumor vascularity.