[Two Cases of Radiation-Induced Breast Angiosarcoma after Breast-Conserving Surgery]

Area of Science:

• Oncology
• Surgical Pathology
• Radiation Oncology

Background:

• Radiation-induced breast angiosarcoma is a rare but aggressive malignancy.
• It typically develops years after breast cancer treatment involving surgery and radiation.
• Prognosis is often poor due to the rarity and advanced nature of the disease.

Purpose of the Study:

• To report two cases of radiation-induced breast angiosarcoma.
• To highlight the clinical presentation and diagnostic challenges.
• To discuss the implications for patient management and treatment strategies.

Main Methods:

• Case presentation of two patients diagnosed with radiation-induced breast angiosarcoma.
• Review of medical history, including previous breast cancer surgery (partial mastectomy) and adjuvant radiation therapy.
• Pathological examination and diagnostic procedures for angiosarcoma.
• Description of subsequent treatments, including mastectomy and chemotherapy (weekly paclitaxel).

Main Results:

• Two patients developed angiosarcoma years after breast-conserving surgery and radiation.
• Case 1: 95-year-old woman, angiosarcoma diagnosed 11 years post-treatment.
• Case 2: 61-year-old woman, angiosarcoma diagnosed 6 years post-treatment, treated with weekly paclitaxel.

Conclusions:

• Radiation-induced breast angiosarcoma is a significant concern after breast cancer treatment.
• Surgical resection is the primary treatment, but established protocols are lacking.
• Further research is needed to define optimal management and improve patient outcomes.