Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2011-5-9
pubmed:abstractText
DiGeorge syndrome, or velocardiofacial syndrome (DGS/VCFS), is a rare and usually sporadic congenital genetic disorder resulting from a constitutional microdeletion at chromosome 22q11.2. While rare cases of malignancy have been described, likely due to underlying immunodeficiency, central nervous system tumors have not yet been reported. We describe an adolescent boy with DGS/VCFS who developed a temporal lobe pleomorphic xanthoastrocytoma. High-resolution single nucleotide polymorphism array studies of the tumor confirmed a constitutional 22q11.21 deletion, and revealed acquired gains, losses and copy number neutral loss of heterozygosity of several chromosomal regions, including a homozygous deletion of the CDKN2A/B locus. The tumor also demonstrated a common V600E mutation in the BRAF oncogene. This is the first reported case of a patient with DiGeorge syndrome developing a CNS tumor of any histology and expands our knowledge about low-grade CNS tumor molecular genetics.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1573-7373
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
509-14
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Temporal lobe pleomorphic xanthoastrocytoma and acquired BRAF mutation in an adolescent with the constitutional 22q11.2 deletion syndrome.
pubmed:affiliation
Neurosciences Program, Hematology and Oncology Center, Cook Children's Medical Center, 901 Seventh Avenue, Suite 220, Fort Worth, TX 76104, USA. jmurray@cookchildrens.org
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural