Melanoma Neoplasm of the skin Cutaneous melanoma 2012-08-01T02:04:21Z The presence of a melanoma of the skin. NCIT:C3224 SNOMEDCT_US:372244006 The phenotypic presentation of melanomas is often described using the ABCDE mnemomic: A) Asymmetry; B) Borders of the lesion are irregular; C) Color changes from one area of the lesion to another, with shades of tan, brown, or black, and sometimes white, red, or blue; D) Diameter of the lesionis usually larger than 6 mm; E) Evolution of the appearance of the lesion with time. These rules do not, however, apply to every melanoma. HP:0012056 SNOMEDCT_US:2092003 UMLS:C0025202