Perilobular Hemangioma of the Breast
Definition
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Benign microscopic vascular lesion of the breast
Alternate/Historical Names
Diagnostic Criteria
- Incidental microscopic lesion
- Frequently within the lobular stroma
May involve extralobular or periductal stroma - Cluster of vascular channels
Capillary to small cavernous vessels - Occasional lesions with atypical features
May have focal anastomoses May have hyperchromatic nuclei Must lack extensive complex anastomoses, papillary endothelial tufting, mitotic figures - Complete excision and examination is required for the diagnosis of any benign vascular lesion in the breast
