Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2005-9-21
pubmed:abstractText
There are several malignant or benign skin diseases which can be explained by the phenomenon of mosaicism or segmental manifestation, e. g. segmental neurofibromatosis 1 or cutaneous leiomyomatosis. Loss of heterozygosity is a crucial element for segmental manifestations. Two types of segmental manifestations can be defined in autosomal dominant skin diseases such as cutaneous leiomyomatosis. Type 1 is caused by a novel postzygotic segmental mutation; type 2 reflects an additional postzygotic loss of heterozygosity of the gene locus responsible for cutaneous leiomyomatosis in a initially heterozygous embryo. Loss of heterozygosity is a genetic process when a heterozygous cell becomes homozygous or hemizygous by loosing the corresponding wild-type allele. This phenomenon can be regarded as a precondition for tumor growth. In type-2 cases, the segmental manifestation is more distinctive with additional disseminated disease because of a germline mutation with heterozygosity of all somatic cells outside the strongly affected area.
pubmed:commentsCorrections
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1610-0379
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
695-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
[Familial occurrence of a type 2 segmental manifestation of cutaneous leiomyomatosis].
pubmed:affiliation
Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Leipzig. Regina.Renner@medizin.uni-leipzig.de
pubmed:publicationType
Journal Article, English Abstract, Case Reports