Melanocytes of a Melanocytic Nevus in a Lymph node from a Patient with a Primary Cutaneous Melanoma Associated with a Small Congenital Nevus.Hruban, Ralph H. M.D.; Eckert, Fritjof M.D.; Baricevic, Branko M.D.American Journal of Dermatopathology: August 1990 Extraordinary Case Reports: PDF Only Abstract Aggregates of melanocytes within the parenchyma of a supraomohyoid lymph node were found in a lymph node dissection from a 52-year-old woman who had a primary cutaneous melanoma that had arisen in association with a small congenital nevus. The melanocytes in the lymph node were interpreted to be those of a benign melanocytic nevus, and not those of malignant melanoma, based on similarities in morphologic features and immunohisto-chemical staining between the melanocytes in the node and those in the cutaneous congenital nevus. (C) Lippincott-Raven Publishers.