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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1998-11-18
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pubmed:abstractText |
Detection of K-ras mutations may be useful in the evaluation of pancreatic cancer. The aim of this study was to assess, in a prospective design, the diagnostic utility of K-ras mutation analysis in 62 consecutive fine-needle aspirates of pancreatic masses, using two PCR-based techniques-standard and enriched-with detection limits of a mutant allele in the presence of 10(2) or 10(3) wild-type alleles, respectively. Cytology alone offered a diagnostic sensitivity of 75%. The enriched higher sensitivity detection technique, in combination with cytology, offered a diagnostic sensitivity of 91% without false positives. The molecular analysis would have contributed to diagnosis in an additional 14 cases of pancreatic cancer. The standard technique contributed to diagnosis in an additional 9 cases. These results strongly support the use of the enriched method of detecting K-ras mutations as a complement to cytology in the evaluation of pancreatic masses.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0009-9147
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
44
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2243-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9799749-Aged,
pubmed-meshheading:9799749-Biopsy, Needle,
pubmed-meshheading:9799749-Codon,
pubmed-meshheading:9799749-Female,
pubmed-meshheading:9799749-Genes, ras,
pubmed-meshheading:9799749-Humans,
pubmed-meshheading:9799749-Male,
pubmed-meshheading:9799749-Middle Aged,
pubmed-meshheading:9799749-Mutation,
pubmed-meshheading:9799749-Pancreas,
pubmed-meshheading:9799749-Pancreatic Neoplasms,
pubmed-meshheading:9799749-Polymerase Chain Reaction,
pubmed-meshheading:9799749-Polymorphism, Restriction Fragment Length,
pubmed-meshheading:9799749-Polymorphism, Single-Stranded Conformational,
pubmed-meshheading:9799749-Prospective Studies,
pubmed-meshheading:9799749-Reverse Transcriptase Polymerase Chain Reaction,
pubmed-meshheading:9799749-Sensitivity and Specificity
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pubmed:year |
1998
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pubmed:articleTitle |
K-ras gene mutations in the diagnosis of fine-needle aspirates of pancreatic masses: prospective study using two techniques with different detection limits.
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pubmed:affiliation |
Department of Clinical Biochemistry, Hospital de la Santa Creu i Sant Pau, Antoni M. Claret, Barcelona, Spain. lig@santpau.es
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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