{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T21:06:20Z","timestamp":1760043980701},"reference-count":27,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2002,6,28]],"date-time":"2002-06-28T00:00:00Z","timestamp":1025222400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am. J. Med. Genet."],"published-print":{"date-parts":[[2002,9,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Pigmentary mosaicism is a heterogeneous cutaneous phenotype that is often associated with extracutaneous anomalies. It is widely accepted that these phenotypes arise de novo as a result of a postzygotic mutation, leading to a mosaic status of the embryo. In the vast majority of cases, the occurrence of pigmentary mosaicism is sporadic. We report two paternal half\u2010brothers affected with pigmentary mosaicism of the hyperpigmented type. The hyperpigmentation in both patients is distributed along the lines of Blaschko. In addition, mental retardation, facial asymmetry, short stature, scoliosis, and short fingers with clinodactyly of the 5th digit were noted in one of them. Chromosome analysis in this 15\u2010year\u2010old patient demonstrated a mosaic 46,XY,dup(3)(p21.3;pter)\/46,XY with 12% aberrant cells in lymphocytes and 2% in skin fibroblasts derived from a hyperpigmented area. His nine\u2010year\u2010old half\u2010brother had similar systematized hyperpigmented skin lesions, macrocephaly, facial asymmetry, and clinodactyly of the 5th digit. Chromosome analysis of peripheral lymphocytes showed a normal karyotype 46,XY. A skin biopsy could not be obtained. So far, some familial cases of hypopigmentation along the lines of Blaschko have been reported, but familial occurrence of the hyperpigmented type of pigmentary mosaicism appears to be extremely unusual. It is difficult to establish a causal relationship with the chromosomal mosaicism as observed in patient 1. Paradominant transmission seems unlikely because this would likewise imply that the chromosomal mosaicism is an incidental finding. \u00a9 2002 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/ajmg.10600","type":"journal-article","created":{"date-parts":[[2002,10,9]],"date-time":"2002-10-09T02:32:57Z","timestamp":1034130777000},"page":"65-69","source":"Crossref","is-referenced-by-count":17,"title":["Pigmentary mosaicism of the hyperpigmented type in two half\u2010brothers"],"prefix":"10.1002","volume":"112","author":[{"given":"Denise","family":"Horn","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rudolf","family":"Happle","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Heidemarie","family":"Neitzel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J\u00fcrgen","family":"Kunze","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2002,6,28]]},"reference":[{"key":"e_1_2_4_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0190-9622(94)70090-7"},{"key":"e_1_2_4_3_1","doi-asserted-by":"publisher","DOI":"10.1159\/000310069"},{"key":"e_1_2_4_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/adc.56.10.798"},{"key":"e_1_2_4_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/ajmg.1320350105"},{"key":"e_1_2_4_6_1","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1001\/archderm.1975.01630180079010","article-title":"Incontinentia pigmenti achromians","volume":"111","author":"Griffiths A","year":"1975","journal-title":"Arch Dermatol"},{"key":"e_1_2_4_7_1","doi-asserted-by":"publisher","DOI":"10.1159\/000252373"},{"key":"e_1_2_4_8_1","first-page":"39","article-title":"Paradominant inheritance: a possible explanation for Becker's pigmented hairy nevus","volume":"2","author":"Happle R","year":"1992","journal-title":"Eur J Dermatol"},{"key":"e_1_2_4_9_1","first-page":"170","article-title":"Pigmentary patterns associated with human mosaicism: a proposed classification","volume":"3","author":"Happle R","year":"1993","journal-title":"Eur J Dermatol"},{"key":"e_1_2_4_10_1","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1993.01680320094012"},{"key":"e_1_2_4_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1096-8628(19980827)79:1<64::AID-AJMG14>3.0.CO;2-K"},{"key":"e_1_2_4_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0190-9622(99)70042-3"},{"key":"e_1_2_4_13_1","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.33.3.177"},{"key":"e_1_2_4_14_1","doi-asserted-by":"crossref","first-page":"596","DOI":"10.1001\/archderm.1973.01620190068017","article-title":"Hypomelanosis of Ito (\u201cincontinentia pigmenti achromians\u201d). 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