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- W2098362592 abstract "Cystic thyroid lesions can harbour an occult papillary carcinoma, which fine needle aspiration (FNA) biopsy may fail to detect. Recently, new markers such as galectin-3 lectin have been proposed to distinguish benign from malignant thyroid lesions of follicular origin. The aim of this study was to assess the role of galectin-3 immunodetection in a series of FNA cytological samples of benign and malignant thyroid cystic nodules.We retrospectively analysed galectin-3 expression by immunoperoxidase staining on 32 cytological paraffin-embedded samples of cystic papillary carcinoma and on 12 samples of benign cysts, both obtained by FNA biopsy. Specificity, sensitivity, positive/negative predictive values, and accuracy of standard cytological examination and galectin-3 immunodetection were assessed.Among cystic papillary carcinomas, 29 of 32 samples were galectin-3 positive, whereas standard FNA cytology made a correct diagnosis in only 25 of 32 samples. All the benign cysts were negative for galectin-3. In comparing the sensitivity and specificity of the two methods, it appeared that both had a 100% specificity, whereas the sensitivity of cytological examination alone was 75% versus 89.3% obtained by galectin-3 immunohistochemistry.Galectin-3 immunostaining represents a valid pre-operative adjunct to pick up malignant cells in those cases where a very poor number of epithelial cells may lead to a cytological misdiagnosis. Therefore, we suggest that in poorly cellular FNA biopsies of simple or complex thyroid cysts, galectin-3 expression by epithelial cells is consistent with a cystic carcinoma and supports surgical treatment indication." @default.
- W2098362592 created "2016-06-24" @default.
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- W2098362592 date "2002-10-01" @default.
- W2098362592 modified "2023-10-16" @default.
- W2098362592 title "Role of galectin-3 immunodetection in the cytological diagnosis of thyroid cystic papillary carcinoma" @default.
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- W2098362592 doi "https://doi.org/10.1530/eje.0.1470515" @default.
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