Amelanotic melanoma

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Amelanotic melanoma
Canine malignant melanoma.JPG
Amelanotic melanoma on dog's toe
SpecialtyOncology, Dermatology Edit this on Wikidata

Amelanotic melanoma is a type of skin cancer in which the cells do not make any melanin.[1]:696[2] They can be pink, red, purple or of normal skin color, and are therefore difficult to diagnose correctly. They can occur anywhere on the body, just as a typical melanoma can.

Often, amelanotic melanomas are mistaken for benign lesions, including dermatitis, benign neoplastic processes, or a different malignancy such as basal-cell carcinoma or squamous-cell carcinoma.[3]

A poor prognosis is associated with amelanotic lesions, partially due to the difficulty in achieving a diagnosis; however, metastatic amelanotic melanoma has a worse prognosis than other subtypes.[3]

See also[edit]


  1. ^ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.
  2. ^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.
  3. ^ a b Cabrera, Raúl; Recule, Francisca (2018). "Unusual Clinical Presentations of Malignant Melanoma: A Review of Clinical and Histologic Features with Special Emphasis on Dermatoscopic Findings". American Journal of Clinical Dermatology. 19 (Suppl 1): 15–23. doi:10.1007/s40257-018-0373-6. ISSN 1175-0561. PMC 6244635. PMID 30374898.

External links[edit]


 This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".