A rare phenomenon of twin spotting: Phacomatosis pigmentokeratotica
Phacomatosis pigmentokeratotica is a rare form of cutaneous mosaicism characterized by epidermal nevus usually nevus sebaceous, papular speckled lentiginous nevus, and extracutaneous anomalies. This type of twin-spot phenomenon (didymosis) is due to postzygotic crossing-over resulting in two homozyg...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2019-01-01
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| Series: | Indian Journal of Paediatric Dermatology |
| Subjects: | |
| Online Access: | http://www.ijpd.in/article.asp?issn=2319-7250;year=2019;volume=20;issue=3;spage=267;epage=270;aulast=Wankhade |
| Summary: | Phacomatosis pigmentokeratotica is a rare form of cutaneous mosaicism characterized by epidermal nevus usually nevus sebaceous, papular speckled lentiginous nevus, and extracutaneous anomalies. This type of twin-spot phenomenon (didymosis) is due to postzygotic crossing-over resulting in two homozygous daughter cells, representing the stem cells of the two distinct types of nevi and leading to additional extracutaneous defects. We report a case of this rare syndrome in a 4-year-old male child associated with skeletal anomalies. |
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| ISSN: | 2319-7250 |