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Case Reports in Oncological Medicine
Volume 2011, Article ID 517047, 5 pages
http://dx.doi.org/10.1155/2011/517047
Case Report

Primary Breast Angiosarcoma: Avoiding a Common Trap

1Centre des Maladies du Sein Deschênes-Fabia, Hôpital du Saint-Sacrement, CHA Universitaire de Québec, 1050 chemin Sainte-Foy, Québec City, QC, Canada G1S 4L8
2Santé des populations: URESP, Centre de recherche FRSQ du CHA Universitaire de Québec, 1050 chemin Ste-Foy, Quebec City, QC, Canada G1S 4L8
3Département de Chirurgie, Université Laval, Pavillon Ferdinand-Vandry, 1050 Avenue de la Médecine, Quebec City, QC, Canada G1V 0A6
4Hôtel-Dieu d'Arthabaska, 5 Rue des Hospitalières, Victoriaville, Québec City, QC, Canada G6P 6N2

Received 24 May 2011; Accepted 8 June 2011

Academic Editors: K. Aogi, M. Berliere, Y.-J. Chen, and N. F. S. Watson

Copyright © 2011 Christine Desbiens et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Primary breast angiosarcoma is a rare entity. Case. Initial diagnosis was a benign hemangioma at core biopsy. Wide local excision was performed, with positive margins. Pathology after surgery reported a moderately differentiated angiosarcoma. Tumor was finally treated using mastectomy and radiations. She developed a second angiosarcoma in contralateral breast, with an initial diagnosis on core biopsy of an atypical vascular lesion and was again treated using mastectomy and radiations. She developed bones and lung metastases. Conclusion. Primary breast angiosarcoma is a rare entity often difficult to diagnose on core biopsy, and a benign differential diagnosis is frequent. A highly vascular breast mass should always be considered malignant until proven otherwise. Surgical treatment seems to be the best course of action. There is a lack of data proving efficacy of adjuvant chemotherapy and radiation therapy.