We report a 45 year-old woman who had bilateral breast masses with extradural involvement. Pathologic report revealed malignant high-grade lymphoblastic lymphoma. Systemic chemotherapy was performed but 3 months later, lesions indicating relapse in bone and breast re-appeared. She received salvage chemotherapy, but 4 months after that she was expired.
Keywords: Breast cancer; Lymphoblastic lymphoma; Lymphoma.