Congenital Bilateral Dermal Melanocytosis with a Dermatomal Pattern

Grézard, P; Berard, F.; Balme, B.; Perrot, H

doi:10.1159/000018081

Cited by 6 publications

(6 citation statements)

References 7 publications

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“…They proposed the term "congenital segmental dermal melanocytosis" to describe the findings. In 1999, Grézard et al 4 reported a 45-year-old Caucasian woman with a slowly spreading bilateral congenital pigmentation of the back in a dermatomal distribution from the fourth to the eighth dorsal dermatome that extended laterally to the external part of the breasts. Several authors have also documented cases of isolated small patch forms of congenital dermal melanocytosis [5][6][7] .…”

Section: Discussionmentioning

confidence: 99%

An Unusual Case of Congenital Dermal Melanocytosis

et al. 2010

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Dermal melanocytosis is characterized by the presence of ectopic melanocytes in the dermis. The most common forms include the Mongolian spot, blue nevus, nevus of Ota, and nevus of Ito. Some types of dermal melanocytosis do not fit into any of these morphologic categories, however. Our case demonstrated an extensive amount of uniform deep blue patches of nevi with unilateral distribution on the left face, neck, chest, shoulder, and back. On histopathologic examination, a number of elongated melanocytes scattered throughout the dermis were found. We herein report a case of congenital unilateral dermal melanocytosis. (Ann Dermatol 22(4) 460∼462, 2010)

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Section: Discussionmentioning

confidence: 99%

An Unusual Case of Congenital Dermal Melanocytosis

et al. 2010

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“…54 Their histopathological features are similar to naevus of Ota and naevus of Ito (Figs 7b,c, 8b,c). There are several reports on isolated patchy congenital lesions on the trunk [79][80][81] (Fig. 7a), arm 82 (Fig.…”

Section: Congenital Dermal Melanocytosismentioning

confidence: 99%

“…8d). These atypical DMs have been reported by different terms such as 'congenital unilateral dermal melanocytosis, 54 ' 'atypical dermal melanocytosis, 70 ' 'bilateral dermal melanocytosis with a dermatomal pattern, 80 ' 'congenital segmental dermal melanocytosis 81 ' and 'dermal melanocyte hamartoma 85 ' based on distribution pattern. Interestingly, our patient ( Fig.…”

Section: Congenital Dermal Melanocytosismentioning

confidence: 99%

The spectrum of benign dermal dendritic melanocytic proliferations

Baykal

Yılmaz

Sun

et al. 2019

Acad Dermatol Venereol

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Dermal melanocytoses (DMs) comprise a heterogeneous group of benign lesions, located on skin and mucous membranes, characterized by dendritic melanocytes in the dermis. Although they share common histopathological features, some variants may present only as bluish or grey patches, some only as papules/nodules/plaques and others may show combination of all of these lesions. Despite the fact that blue naevus (BN) is typically characterized with papulonodular lesions, its variants may show all of the aforementioned presentations. Mongolian spot, naevus of Ota and naevus of Ito are patchy DMs distinguished by their specific localizations. Apart from these classical forms, many atypical variants without unique clinicopathological characteristics have been described in the literature making the nomenclature of DMs more complicated. However, congenital dermal melanocytosis and acquired dermal melanocytosis seem to be crucial umbrella terms that encompass all patchy DMs in atypical locations. Papules or subcutaneous nodules on patchy lesions and association of epidermal pigmentation presenting as brownish patches may be encountered as rare features of DMs. On the other hand, delayed‐onset subcutaneous nodules may be typical presentations of melanoma in patchy DMs; therefore, they deserve special attention. Large plaque‐type BN with subcutaneous cellular nodules is a newly described entity, harbouring clinical features of various DMs together and has a high risk of melanoma. The whole spectrum of dermal dendritic melanocytic proliferations is discussed including novelties and controversial issues.

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“…Although the lesion is in the form of a speckled bluish patch and shares a similar morphology, its distribution is different from both. Mongolian spots are present at birth in the sacral area in over 90% of the Mongoloid race 1 and pigmentation of the blue nevus usually appears uniformly or has a papular character 2 . However, the pigmentation of our patient was confined to the palm and presented as a mottled patch.…”

mentioning

confidence: 60%

Congenital dermal melanocytosis confined to the palm

et al. 2007

Acad Dermatol Venereol

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Congenital Bilateral Dermal Melanocytosis with a Dermatomal Pattern

Cited by 6 publications

References 7 publications

An Unusual Case of Congenital Dermal Melanocytosis

An Unusual Case of Congenital Dermal Melanocytosis

The spectrum of benign dermal dendritic melanocytic proliferations

Congenital dermal melanocytosis confined to the palm

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