Abstract:
:The identification of specific tumor mRNA markers by reverse transcription-polymerase chain reaction might be a valuable diagnostic adjunct for the detection of breast cancer metastases in axillary sentinel lymph nodes (SLNs). In this study we have compared the diagnostic accuracy of an extensive histopathologic examination of 146 SLNs from 123 breast carcinoma patients with that of the evaluation of 5 mRNA markers. When analyzed individually, none of the different markers attained a sensitivity higher than 77.8%, and the general concordance with the histopathologic findings ranged from 78.8 to 83.6%. In a multiple-marker assay, taking into account the expression of at least 1 of the 5 tumor markers, the sensitivity of the test rose to 95.6%, with a specificity of 66.3% and a general concordance with the histopathologic status of 75.3%. Finally, when at least 2 of 3 markers (maspin, cytokeratin 19 and mammaglobin 1) were expressed, the concordance with either SLN or axillary lymph node status was highest (88.4% and 84.6%, respectively). The high prevalence of positive reverse transcription-polymerase chain reaction assays in histologically uninvolved SLNs, however, may hamper extensive application of these techniques in the clinical setting.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Manzotti M,Dell'Orto P,Maisonneuve P,Zurrida S,Mazzarol G,Viale Gdoi
10.1002/1097-0215(20010920)95:5<307::aid-ijc0153>3keywords:
subject
Has Abstractpub_date
2001-09-20 00:00:00pages
307-12issue
5eissn
0020-7136issn
1097-0215pii
10.1002/1097-0215(20010920)95:5<307::AID-IJC0153>3journal_volume
95pub_type
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