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Journal of Anatomy and Histopathology

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Immunohistochemical features of mammary gland tissue adjacent to the tumor in patients with fibroadenomas

https://doi.org/10.18499/2225-7357-2017-6-4-21-26

Abstract

The aim was to study morphological and immunohistochemical features of mammary glands tumor tissue in women with fibroadenomas. Materials and methods. The study used biopsy specimens of mammary gland tissue tumor sites of 58 patients operated on for mammary fibroadenoma. For light-optical examination, the material was fixed in a 10% aqueous solution of neutral formalin and Buen's liquid. After standard histological wiring, the material was poured into paraffin-celloidin. Preparation of serial sections with a thickness of 5-7 micrometers was carried out on a rotational microtome of MPS-2. The dewaxed sections were stained with Mayer's hematoxylin and eosin. The preparations were studied using light microscopy with the Optika B-350 microscope (Optika, Italy) and DCM500 camera. For the immunohistochemical study, antibodies from Thermo Scientific (USA) were used: ER, PR, Ki-67, smooth muscle actin. Results. It was revealed that benign tumors occur on the background of mammary glands benign hyperplasia. In proliferative form of fibro-cystic disease, foci with an excessive content of steroid receptors are formed. Examination of Ki-67 expression allowed to determin the amplification of Ki-67 expression in the tissue in the proliferative form of fibrocystic disease. There was a high expression of smooth muscle actin in non-proliferative and moderate degree of proliferative mastopathy forms. In the case of a proliferative form of fibro-cystic changes of a high degree, the expression of the smooth muscle actin was weaker. Conclusions. High expression of the proliferation marker of Ki-67, estrogen receptor and progesterone in the proliferative form of fibrocystic changes in the tumor tissue is an unfavorable predictor of the disease. Markers that determine the favorable course of the disease are high expression of smooth muscle actin.

About the Authors

A. S. Zhirnova
Orenburg state medical University, Orenburg, Russia
Russian Federation


N. N. Shevlyuk
Orenburg state medical University, Orenburg, Russia
Russian Federation


P. P. Kurlaev
Orenburg state medical University, Orenburg, Russia
Russian Federation


O. M. Abramzon
Orenburg state medical University, Orenburg, Russia
Russian Federation


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Review

For citations:


Zhirnova A.S., Shevlyuk N.N., Kurlaev P.P., Abramzon O.M. Immunohistochemical features of mammary gland tissue adjacent to the tumor in patients with fibroadenomas. Journal of Anatomy and Histopathology. 2017;6(4):21-26. (In Russ.) https://doi.org/10.18499/2225-7357-2017-6-4-21-26

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ISSN 2225-7357 (Print)