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High grade angiosarcoma arising in fibroadenoma.
Emina Babarović1, Gordana Zamolo, Elvira Mustać
1Department of Pathology, School of Medicine, University of Rijeka, Braće Branchetta 20, Rijeka, Croatia. esinozic@gmail.com
Diagnostic Pathology
|December 22, 2011
Summary
Primary breast angiosarcoma is a rare cancer, often presenting with nonspecific symptoms. This report details the first known case of angiosarcoma originating within a fibroadenoma, highlighting diagnostic challenges.
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Primary breast angiosarcoma is a rare malignancy, accounting for less than 0.05% of all breast tumors.
- This tumor type often presents insidiously with nonspecific or even normal radiologic findings, complicating early diagnosis.
- Prognosis is generally poor due to high rates of local recurrence and early metastasis.
Observation:
- A case report of a 53-year-old postmenopausal woman with primary breast angiosarcoma.
- The angiosarcoma in this case originated within a fibroadenoma.
- This represents the first documented instance of primary angiosarcoma arising in a fibroadenoma.
Findings:
- Primary angiosarcoma of the breast is exceptionally rare.
- Angiosarcoma can arise within benign breast lesions like fibroadenomas.
- Diagnostic challenges exist due to nonspecific clinical and radiologic presentations.
Implications:
- Highlights the importance of considering rare diagnoses in breast pathology.
- Suggests fibroadenomas as a potential precursor for primary angiosarcoma.
- Emphasizes the need for vigilance in interpreting breast imaging and pathology, especially in atypical presentations.

