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Updated: Mar 26, 2026

Sectioning Mammary Gland Whole Mounts for Lesion Identification
Published on: July 24, 2017
Small Glandular Proliferations of the Breast
Timothy M D'Alfonso1, Sandra J Shin1
1Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital - Weill Cornell Medical College, New York, NY, USA.
Abstract:
This article discusses the most common small glandular proliferations, namely sclerosing lesions (sclerosing adenosis and radial scar), tubular carcinoma, and epithelial displacement after needle core biopsy, as well as less common entities, such as low-grade adenosquamous carcinoma, microglandular adenosis, and syringomatous adenoma. Due to significant morphologic overlap, these entities are easily mistaken for one another. The similarities and differences among these lesions in their clinicopathologic features, radiologic findings, and immunohistochemical profiles are emphasizesd.
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