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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1989-3-17
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pubmed:abstractText |
We studied peripheral blood lymphocyte karyotypes of 203 patients with retinoblastoma. Twelve (5.9%) had a constitutional chromosomal abnormality involving 13q, of whom six had unilateral and six had bilateral disease. Two patients had mosaic deletions, eight had nonmosaic deletions, one had a de novo translocation, and one had a 13q14 deletion and a de novo direct insertion (10;6). Of the total, 4.9% of unilateral and 7.5% of bilateral patients had 13q abnormalities. None of 19 familial retinoblastoma patients had a visible cytogenetic abnormality. The unilateral patients with 13q abnormalities represent prezygotically determined (potentially heritable) cases which would have been classified as postzygotic (sporadic) without cytogenetic analysis. The observed 1% frequency of mosaic deletions is lower than that previously reported.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0027-8874
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
81
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
370-4
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2915374-Child,
pubmed-meshheading:2915374-Child, Preschool,
pubmed-meshheading:2915374-Chromosome Aberrations,
pubmed-meshheading:2915374-Chromosome Deletion,
pubmed-meshheading:2915374-Chromosome Disorders,
pubmed-meshheading:2915374-Chromosomes, Human, Pair 13,
pubmed-meshheading:2915374-Eye Neoplasms,
pubmed-meshheading:2915374-Female,
pubmed-meshheading:2915374-Humans,
pubmed-meshheading:2915374-Karyotyping,
pubmed-meshheading:2915374-Male,
pubmed-meshheading:2915374-Mosaicism,
pubmed-meshheading:2915374-Retinoblastoma,
pubmed-meshheading:2915374-Sex Factors
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pubmed:year |
1989
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pubmed:articleTitle |
Frequency of 13q abnormalities among 203 patients with retinoblastoma.
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pubmed:affiliation |
Children's Hospital of Philadelphia, PA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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