Warfarin-Induced Spontaneous Bilateral Breast and Extrathoracic Hematoma in an Elderly Woman

Warfarin- induced spontaneous breast hematoma is a very rare disease, with only a few cases having been reported in the literature so far. we describe an 80-year-old woman who had warfarin therapy due to deep vein thrombosis in a lower extremity. the patient was admitted with a history of swelling and red area on her bilateral breasts, chest wall, right arm, and right flank. she was treated conservatively with success. she was discharged after about 3 weeks without complications and was well at 6 months’ follow-up.