Volume 36, Issue 9 pp. 1883-1894
Original Research

Histological Grade and Immunohistochemical Biomarkers of Breast Cancer: Correlation to Ultrasound Features

Frederick Wing-Fai Au MBBS

Corresponding Author

Frederick Wing-Fai Au MBBS

Joint Department of Medical Imaging, Toronto General Hospital, Toronto, Ontario, Canada

Address correspondence to Frederick Wing-Fai Au, MBBS, Joint Department of Medical Imaging, Toronto General Hospital, 585 University Ave E, Toronto, Ontario M5G 2N2, Canada. E-mail: [email protected]Search for more papers by this author
Sandeep Ghai MD

Sandeep Ghai MD

Joint Department of Medical Imaging, Women's College Hospital, Toronto, Ontario, Canada

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Fang-I Lu MD

Fang-I Lu MD

Department of Pathology, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada

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Hadas Moshonov PhD

Hadas Moshonov PhD

Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada

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Pavel Crystal MD

Pavel Crystal MD

Joint Department of Medical Imaging, Mount Sinai Hospital, Toronto, Ontario, Canada

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First published: 27 May 2017
Citations: 20

Part of the material in the manuscript was presented as a scientific poster at the American Roentgen Ray Society annual meeting; April 2016; Los Angeles, California.

Abstract

Objectives

The purpose of this study is to correlate various features of breast cancers on ultrasound to their histological grade and immunohistochemical biomarkers.

Methods

Seventy-three patients with 77 invasive breast cancers, diagnosed between August 2011 and December 2014, were included in this prospective analysis. Margin, posterior features, shape, and vascularity were determined from ultrasound and classified according to the Breast Imaging Reporting and Data System lexicon. Histological grade, estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status (positive [+] or negative []) were determined from surgical pathology reports. The cancers were categorized into low grade (grades 1 or 2) and high grade (grade 3). Correlation of ultrasound features of the cancers to their histological grade and receptor status was performed.

Results

There were 47 low-grade and 29 high-grade cancers. There was a significant difference in margin and posterior features between the low and high grade, ER + and ER, and PR + and PR (all P < .05), but not between HER2 + and HER2 cancers (both P > .05). There was no significant difference in shape and vascularity among the different subtypes (all P > .05). Spiculated margin was significantly associated with low-grade, ER+, PR + status; angular margin with high grade; microlobulated margin with ER status; shadowing with PR + status; and enhancement with high grade, ER status (all P < .05, all odds ratios ≥ 3.94).

Conclusions

There was significant association of margin and posterior features of breast cancers with their histological grade and receptor status.

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