# Breast Hemangioma with Slow Growth over 11 Years: A Case Report

## TL;DR

A rare benign breast tumor called hemangioma slowly grew over 11 years and was correctly identified using imaging and biopsy.

## Contribution

This case highlights the long-term slow growth and imaging features of breast hemangioma to aid in distinguishing it from malignant tumors.

## Key findings

- Breast hemangioma can remain benign and slowly enlarge over an 11-year period.
- MRI showed a peripheral-to-central enhancement pattern characteristic of hemangioma.
- Vacuum-assisted biopsy confirmed the benign nature of the lesion despite initial suspicion of malignancy.

## Abstract

Background and Clinical Significance: Breast hemangioma is an extremely rare benign vascular tumor of the breast. Its imaging findings are nonspecific, and differentiation from malignant tumors such as encapsulated papillary carcinoma, mucinous carcinoma or angiosarcoma is often difficult. We report a case of breast hemangioma that showed slow growth over an 11-year period. Case Presentation: A woman in her 50s presented with a well-defined 11 mm mass in the upper outer quadrant of the left breast detected by ultrasonography. A core needle biopsy revealed a benign lesion, and follow-up was recommended. Eleven years later, the mass had increased to 27 mm. Magnetic resonance imaging showed high signal intensity on T2-weighted images and a fast-plateau enhancement pattern extending from the periphery to the center. Although malignancy was suspected, vacuum-assisted biopsy revealed a hemangioma. Conclusions: Breast hemangioma can show slow enlargement over a long period. Recognition of a characteristic peripheral-to-central enhancement pattern may aid in distinguishing this benign vascular lesion from malignant tumors.