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Palmoplantar keratoderma, pseudo-ainhum, and universal atrichia: A new patient and review of the palmoplantar keratoderma-congenital alopecia syndrome.
MedLine Citation:
PMID:  20635335     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Palmoplantar keratoderma (PPK) may concur with congenital alopecia (CA) in various genodermatoses. We report on a 10-year-old girl with generalized atrichia and a severe form of PPK causing pseudo-ainhum, sclerodactyly, and contractures, a phenotype not consistent with any well-defined condition. Non-specific additional findings comprised mild nail dystrophy and widespread keratosis pilaris including ulerythema ophryogenes. Direct sequencing of the GJB2 and LOR coding regions yielded normal results. A review identified two additional sporadic and four familial cases with PPK and CA. Comparison between familial cases suggested the existence of two genetically and phenotypically distinct types of PPK-CA: (i) an autosomal dominant form (Stevanović type), a variable and benign phenotype without significant hand complications, and (ii) a more complex autosomal recessive variant (Wallis type) with contractures, sclerodactyly, and pseudo-ainhum. Nuclear cataract may represent an additional although not constant finding in the Wallis type PPK-CA. Further reports are required to test this preliminary conclusion.
Authors:
Marco Castori; Michele Valiante; Marco Ritelli; Nicoletta Preziosi; Marina Colombi; Mauro Paradisi; Paola Grammatico
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of medical genetics. Part A     Volume:  152A     ISSN:  1552-4833     ISO Abbreviation:  Am. J. Med. Genet. A     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101235741     Medline TA:  Am J Med Genet A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2043-7     Citation Subset:  IM    
Affiliation:
Medical Genetics, Department of Experimental Medicine, Sapienza - University of Rome, San Camillo-Forlanini Hospital, Rome, Italy. mcastori@scamilloforlanini.rm.it
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