Familial clustering of giant congenital melanocytic nevi

Summary Giant congenital melanocytic nevus (GCMN) is an infrequently occurring congenital malformation. GCMN generally occurs in isolation but rare familial occurrence points to a genetic background. We present two cases of familial GCMN: one with two affected siblings and another with two affected...

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Veröffentlicht in:Journal of plastic, reconstructive & aesthetic surgery reconstructive & aesthetic surgery, 2010-06, Vol.63 (6), p.906-913
Hauptverfasser: de Wijn, Robert S, Zaal, Laura H, Hennekam, Raoul C.M, van der Horst, Chantal M.A.M
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container_end_page 913
container_issue 6
container_start_page 906
container_title Journal of plastic, reconstructive & aesthetic surgery
container_volume 63
creator de Wijn, Robert S
Zaal, Laura H
Hennekam, Raoul C.M
van der Horst, Chantal M.A.M
description Summary Giant congenital melanocytic nevus (GCMN) is an infrequently occurring congenital malformation. GCMN generally occurs in isolation but rare familial occurrence points to a genetic background. We present two cases of familial GCMN: one with two affected siblings and another with two affected double second cousins. Familial occurrence of GCMN reported in literature is reviewed and an overview of the embryology and proliferation given, illustrating the plethora of factors that might lead to GCMN formation. The pattern of inheritance is likely not Mendelian and discordance in identical twins and the segmental distribution of lesions suggest a post-zygotic mutation. A polygenic paradominant inheritance best explains the clinically observed transmission pattern. Candidate genes include those influencing neural crest development and melanocyte proliferation.
doi_str_mv 10.1016/j.bjps.2009.02.090
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GCMN generally occurs in isolation but rare familial occurrence points to a genetic background. We present two cases of familial GCMN: one with two affected siblings and another with two affected double second cousins. Familial occurrence of GCMN reported in literature is reviewed and an overview of the embryology and proliferation given, illustrating the plethora of factors that might lead to GCMN formation. The pattern of inheritance is likely not Mendelian and discordance in identical twins and the segmental distribution of lesions suggest a post-zygotic mutation. A polygenic paradominant inheritance best explains the clinically observed transmission pattern. Candidate genes include those influencing neural crest development and melanocyte proliferation.</description><identifier>ISSN: 1748-6815</identifier><identifier>EISSN: 1878-0539</identifier><identifier>DOI: 10.1016/j.bjps.2009.02.090</identifier><identifier>PMID: 19464972</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Biological and medical sciences ; Cluster Analysis ; Dermatology ; Familial ; Female ; Giant congenital melanocytic nevus (GCMN) ; Humans ; Infant, Newborn ; Inheritance ; LCMN ; Medical sciences ; Melanogenesis ; Nevus pathogenesis ; Nevus, Pigmented - congenital ; Nevus, Pigmented - genetics ; Nevus, Pigmented - pathology ; Plastic Surgery ; Skin Neoplasms - congenital ; Skin Neoplasms - genetics ; Skin Neoplasms - pathology ; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases ; Tumors of the skin and soft tissue. 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GCMN generally occurs in isolation but rare familial occurrence points to a genetic background. We present two cases of familial GCMN: one with two affected siblings and another with two affected double second cousins. Familial occurrence of GCMN reported in literature is reviewed and an overview of the embryology and proliferation given, illustrating the plethora of factors that might lead to GCMN formation. The pattern of inheritance is likely not Mendelian and discordance in identical twins and the segmental distribution of lesions suggest a post-zygotic mutation. A polygenic paradominant inheritance best explains the clinically observed transmission pattern. Candidate genes include those influencing neural crest development and melanocyte proliferation.</description><subject>Biological and medical sciences</subject><subject>Cluster Analysis</subject><subject>Dermatology</subject><subject>Familial</subject><subject>Female</subject><subject>Giant congenital melanocytic nevus (GCMN)</subject><subject>Humans</subject><subject>Infant, Newborn</subject><subject>Inheritance</subject><subject>LCMN</subject><subject>Medical sciences</subject><subject>Melanogenesis</subject><subject>Nevus pathogenesis</subject><subject>Nevus, Pigmented - congenital</subject><subject>Nevus, Pigmented - genetics</subject><subject>Nevus, Pigmented - pathology</subject><subject>Plastic Surgery</subject><subject>Skin Neoplasms - congenital</subject><subject>Skin Neoplasms - genetics</subject><subject>Skin Neoplasms - pathology</subject><subject>Surgery (general aspects). Transplantations, organ and tissue grafts. 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subjects Biological and medical sciences
Cluster Analysis
Dermatology
Familial
Female
Giant congenital melanocytic nevus (GCMN)
Humans
Infant, Newborn
Inheritance
LCMN
Medical sciences
Melanogenesis
Nevus pathogenesis
Nevus, Pigmented - congenital
Nevus, Pigmented - genetics
Nevus, Pigmented - pathology
Plastic Surgery
Skin Neoplasms - congenital
Skin Neoplasms - genetics
Skin Neoplasms - pathology
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Tumors of the skin and soft tissue. Premalignant lesions
title Familial clustering of giant congenital melanocytic nevi
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