期刊
AMERICAN JOURNAL OF CLINICAL PATHOLOGY
卷 126, 期 1, 页码 59-66出版社
OXFORD UNIV PRESS INC
DOI: 10.1309/9NXP7FRF87MU2PCK
关键词
galectin-3; Ki-67; parathyroid gland; hyperparathyroidism; parathyroid hyperplasia; parathyroid neoplasm; immunohistochemistry
类别
Hyperplastic and neoplastic parathyroid lesions may present overlapping morphologic features, and several markers have been proposed to distinguish benign from malignant growths. Recently, it was reported that galectin-3 is a useful marker of malignancy in uniglandular parathyroid diseases. To investigate galectin-3 and Ki-67 immunoexpression in parathyroid hyperplastic disease, 63 multiglandular lesions (13 primary, 40 secondary, and 10 tertiary hyperplasia cases) were analyzed and compared with 45 control cases of parathyroid adenomas and 24 carcinomas. Our data showed that hyperplastic lesions responsible for primary nonfamilial or tertiary hyperparathyroidism, as well as parathyroid adenomas, were negative for galectin-3, as opposed to carcinomas. In addition, secondary and familial primary hyperplasia cases were surprisingly positive for galectin-3 in approximately two thirds of cases. All hyperplastic lesions (positive or negative for galectin-3) had a low Ki-67 index. Based on these findings, secondary hyperplasia has a low proliferative potential but an unexplained galectin-3 reactivity, which reduces its diagnostic role in differentiating benign from malignant nodules in the context of multiglandular parathyroid diseases.
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