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Case Rep Oncol Med. 2014;2014:206260. doi: 10.1155/2014/206260. Epub 2014 Jan 19.

Micromelanomas: A Review of Melanomas ≤2 mm and a Case Report.

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Skin Surgery Clinic, 271A Blockhouse Bay Road, Auckland, NZ 0600, New Zealand ; Department of Skin Cancer, School of Medicine, University of Queensland, Qld 4029, Australia ; Faculty of Surgery, University of Auckland, NZ 1142, New Zealand.


The ABCD acronym used to screen pigmented lesions for melanoma obviously was not designed to contend with melanomas that are under 2 mm in diameter. Previously, views ranged that such small lesions could not be melanomas until a few reports of such "micromelanomas" emerged. The author presents a 2 mm melanoma in situ presenting as an insignificant pigmented lesion in a 60-year-old patient with no previous history of melanoma or multiple nevi-which is usually the norm in cases of small melanoma. This paper reiterates the fact that when it comes to a melanoma, size does not matter. In this paper, the term "micromelanoma" is used by the author to represent melanomas under 2 mm. Dermatoscopy and histopathology findings are discussed in this case, along with a review of small melanomas.

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