Abstract:

Objective: For the patients who underwent breast conserving surgery because of breast cancer; radiotherapy is given routinely to residual breast tissue as complementary treatment. In this article; breast sarcoma case, which was developed after radiotherapy, was discussed in a patient to whom breast conserving surgery was done. Method: Breast-conserving surgery and axillary lymph node dissection was performed to sixty-one years old female patient due to invasive ductal carcinoma of the right breast diagnosis for about 5 years ago. Adjuvant chemotherapy and radiotherapy was applied to the patient. At 5th year of follow-up; mastectomy was performed due to residual malignant mass in breast tissue and the patient's pathology result was reported as a high-grade spindle cell angiosarcoma. First-line chemotherapy was given and the patient died 16 months after diagnosis. Conclusion: Post radiation sarcoma is one of the rare occasions which should be kept mind and its clinical presentation may interfere with breast cancer recurrence in the patients who underwent breast-conserving surgery

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