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Significance of insulin-like growth factor II mRNA-binding 1 protein 3 expression in selected thyroid lesions

Benha Medical Journal 2018 , under publication • 2018
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Publication Information
Authors Taghreed Abd El Samee Abd El Aziz, Ranih Z. Amer, Omnia Y. Bassyoni Hanan A. Sayed-Ahmed
Keywords insulin-like growth factor II mRNA-binding protein 3, insulin-like growth factor, thyroid lesions
Journal Benha Medical Journal 2018 , under publication
Publisher Not Available
Volume Not Available
Issue Not Available
Pages Not Available
publication.type Local
Paper Link Not Available
Supplementary Materials Not Available
Abstract
Background
Differentiation of benign from malignant-follicular thyroid lesions remains difficult and the ability of the molecular markers to differentiate between them is still not clear. The aim of this study is to evaluate the usefulness of insulin-like growth factor II mRNA-binding protein 3 (IMP3) expression to distinguish benign from malignant thyroid lesions.
Patients and methods
This is a retrospective study on 57 selected thyroid lesions designated as: seven cases of Hashimoto thyroiditis, 10 cases of hyperplastic nodules, 15 cases of follicular thyroid adenoma, 13 cases of conventional papillary thyroid carcinoma, six cases of follicular variant of papillary thyroid carcinoma, and six cases of follicular thyroid carcinoma. Immunohistochemistry was applied on formalin-fixed, paraffin-embedded tissue blocks using IMP3. The clinicopathological data were reviewed from patients’ pathological reports and were correlated with IMP3 expression.
Results
IMP3 positivity was seen in one of the seven (14.3%) cases of Hashimoto thyroiditis, two of the 10 (20%) cases of hyperplastic nodule, four of the 15 (26.7%) cases of follicular thyroid adenoma, 12 of the 13 cases of papillary thyroid carcinoma, and in all (100%) follicular variant of papillary thyroid
carcinoma and follicular thyroid carcinoma cases. IMP3 staining was significantly increased from normal thyroid tissue to malignant tumors (P