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Parallel ridge pattern on dermoscopy: observation in non-melanoma cases.

Fracaroli TS, Lavorato FG, Maceira JP, Barcaui C - An Bras Dermatol (2013 Jul-Aug)

Bottom Line: The acral melanoma is the most prevalent type of melanoma in the non-Caucasian population, and dermoscopy is a useful tool for earlier diagnosis and differentiation from benign lesions.The dermoscopic pattern often associated with melanoma on the volar skin is the parallel ridge, with 99% specificity according to the literature.However, this pattern can also occur in several benign acral lesions, so it is important to make a good interpretation of this pattern, along with the clinical history and evolution.

View Article: PubMed Central - PubMed

Affiliation: Rio de Janeiro(RJ), Brazil.

ABSTRACT
The acral melanoma is the most prevalent type of melanoma in the non-Caucasian population, and dermoscopy is a useful tool for earlier diagnosis and differentiation from benign lesions. The dermoscopic pattern often associated with melanoma on the volar skin is the parallel ridge, with 99% specificity according to the literature. However, this pattern can also occur in several benign acral lesions, so it is important to make a good interpretation of this pattern, along with the clinical history and evolution.

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Parallel ridge dermoscopic pattern with preservation of the eccrine glandsaperture and pigmentation on the furrows.
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f04: Parallel ridge dermoscopic pattern with preservation of the eccrine glandsaperture and pigmentation on the furrows.

Mentions: The images displayed on this article illustrate the pattern of parallel ridges in onecase of racial melanosis and another case of congenital melanocytic nevus, phototypes Vand IV respectively, without obliteration of the acrosyringia, which are the superficialopenings of the eccrine glands on the epidermis (Figures1,2,3 and 4). Some authors also found thissame pattern in lesions for which, later histopathology examination did not confirm theclinical suspicion of acral melanoma, thus being labeled by them as "atypicalacral melanosis".8


Parallel ridge pattern on dermoscopy: observation in non-melanoma cases.

Fracaroli TS, Lavorato FG, Maceira JP, Barcaui C - An Bras Dermatol (2013 Jul-Aug)

Parallel ridge dermoscopic pattern with preservation of the eccrine glandsaperture and pigmentation on the furrows.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3760949&req=5

f04: Parallel ridge dermoscopic pattern with preservation of the eccrine glandsaperture and pigmentation on the furrows.
Mentions: The images displayed on this article illustrate the pattern of parallel ridges in onecase of racial melanosis and another case of congenital melanocytic nevus, phototypes Vand IV respectively, without obliteration of the acrosyringia, which are the superficialopenings of the eccrine glands on the epidermis (Figures1,2,3 and 4). Some authors also found thissame pattern in lesions for which, later histopathology examination did not confirm theclinical suspicion of acral melanoma, thus being labeled by them as "atypicalacral melanosis".8

Bottom Line: The acral melanoma is the most prevalent type of melanoma in the non-Caucasian population, and dermoscopy is a useful tool for earlier diagnosis and differentiation from benign lesions.The dermoscopic pattern often associated with melanoma on the volar skin is the parallel ridge, with 99% specificity according to the literature.However, this pattern can also occur in several benign acral lesions, so it is important to make a good interpretation of this pattern, along with the clinical history and evolution.

View Article: PubMed Central - PubMed

Affiliation: Rio de Janeiro(RJ), Brazil.

ABSTRACT
The acral melanoma is the most prevalent type of melanoma in the non-Caucasian population, and dermoscopy is a useful tool for earlier diagnosis and differentiation from benign lesions. The dermoscopic pattern often associated with melanoma on the volar skin is the parallel ridge, with 99% specificity according to the literature. However, this pattern can also occur in several benign acral lesions, so it is important to make a good interpretation of this pattern, along with the clinical history and evolution.

Show MeSH
Related in: MedlinePlus