| Autor: |
Christensen, Lise, Blichert-Toft, Mogens, Brandt, Mathilde, Lange, Martin, Bjerregaard Sneppen, Simone, Ravnsbæk, Joan, Mollerup, Charlotte L., Strange, Lise, Jensen, Flemming, Kirkegaard, Jørgen, Sand Hansen, Hanne, Sørensen, Sven Sølvsten, Feldt-Rasmussen, Ulla |
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| Zdroj: |
Clinical Endocrinology; Aug2000, Vol. 53 Issue 2, p161-169, 09p |
| Abstrakt: |
OBJECTIVE To evaluate the value of immunostaining using the monoclonal antibody (MoAB47) against thyroperoxidase (TPO) in distinguishing between benign and malignant tumour cells in fine needle aspiration cytology (FNAC) samples obtained from a solitary cold nodule of the thyroid gland for the purpose of strengthening the indication for thyroid surgery. DESIGN A prospective, immunocytochemical study of FNACs taken from patients with solitary cold thyroid nodules who presented to Rigshospitalet, Copenhagen, Denmark, during the period April 1993 to May 1996. The first sample series was taken perioperatively in order to test the utility of the method. In the second part of the study samples were obtained preoperatively by ultrasonic guided aspiration. Tissue sections from the nodules obtained during a subsequent operation served as controls. PATIENTS One hundred and eighty-one patients, 150 women and 31 men, were studied. The age range was 14–89 years with a median age of 44 years. Fifty-seven patients were excluded from the study for various reasons leaving us with a total of 124 nodules from 124 patients for final evaluation. METHODS FNAC cells and corresponding nodular tissue were stained by immunocyto– and immuno-histochemistry using MoAb47 and by routine staining methods. Samples were considered benign if 80% or more of the epithelial-looking cells of both the FNACs and the histological tissue sections of the nodule were stained by TPO. Consequently, samples were considered malignant if more than 20% of the epithelial-looking cells failed to stain for TPO. Routinely stained tissue cells and sections served as diagnostic controls. RESULTS A pattern with negative TPO staining was found in all lesions which, by conventional histological staining, were subsequently proven to be malignant. A universal and reliable, positive TPO staining pattern was found in all subsequently proven benign lesions, with the exception of one out of 26 follicular... [ABSTRACT FROM AUTHOR] |
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Complementary Index |
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