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Utility of galectin 3 expression in thyroid aspirates as a diagnostic marker in differentiating benign from malignant thyroid neoplasms.
Indian J Pathol Microbiol ; 2006 Jul; 49(3): 376-80
Article in English | IMSEAR | ID: sea-74684
ABSTRACT
Galectin-3 is a 31kD beta-galactoside binding lectin, which is known to be expressed in various neoplasms including thyroid tumors. This study was conducted to study the role of galectin-3 in differentiating benign from malignant thyroid nodules onfine needle aspirates (FNAC). Galectin-3 immuocytochemistry was performed in 70 cases with adequate smears. The cytology diagnosis of these cases was papillary carcinoma (25), follicular neoplasm (16), adenomatous goiter (20), hyperplastic nodule (5), medullary carcinoma (5) and anaplastic carcinoma (1). Galectin-3 positivity was seen in 80% of papillary carcinomas, 37.5% offollicular neoplasms and in 60% of benign nodules. The single case of anaplastic carcinoma was positive but all the cases of medullary carcinoma were negativefor galectin-3. Three of thefollicular neoplasms that were diagnosed on histology as carcinoma were positive on cytology and one case offollicular adenoma was also positive. Our study shows that galectin-3 is strongly expressed in smears of papillary carcinoma. However, since it is also expressed in a variety of benign lesions, its role as a pre-surgical markerfor differentiating benignfrom malignant thyroid nodules is limited.
Subject(s)
Full text: Available Index: IMSEAR (South-East Asia) Main subject: Thyroid Gland / Female / Humans / Male / Thyroid Neoplasms / Immunohistochemistry / Carcinoma / Biomarkers, Tumor / Adenoma / Prospective Studies Country/Region as subject: Asia Language: English Journal: Indian J Pathol Microbiol Year: 2006 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Main subject: Thyroid Gland / Female / Humans / Male / Thyroid Neoplasms / Immunohistochemistry / Carcinoma / Biomarkers, Tumor / Adenoma / Prospective Studies Country/Region as subject: Asia Language: English Journal: Indian J Pathol Microbiol Year: 2006 Type: Article