The Perilobular Hemangioma: A Benign Microscopic Vascular Lesion of The Breast

Abstract

Vascular tumors of the breast are rare, and reports in the literature suggest that most are malignant. The present study is concerned with a benign vascular tumor of the breast, a lesion generally known as perilobular hemangioma. This microscopic lesion consists of a meshwork of thin-walled, dilated vascular channels that may be situated within a breast lobule or in the extralobular mammary stroma. Hemangiomas of this type were found in seven or 1.2% or 555 mastectomies performed in 1974 in female patients who had mammary carcinoma. There was no association with a specific type of mammary carcinoma. Similar hemangiomas were observed as often in a series of breast biopsies performed for benign conditions. None of the angiomas showed any significant atypia or anaplasia.