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MRI of angiosarcoma associated with chronic lymphoedema: Stewart–Treves syndrome

Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA

Correspondence: Dr Diane Bergin, Thomas Jefferson University Hosptial, 111 South 10th Street, Philadelphia PA, USA. E-mail: diane.bergin{at}jefferson.edu

Cutaneous angiosarcoma is a rare complication of a chronic lymphedematous extremity (Stewart-Treves syndrome). Early recognition of these aggressive tumours is important, as they have a high incidence of local recurrence and metastasis. This report describes the MRI appearance of Stewart-Treves syndrome in a patient with a background of lumpectomy, axillary node dissection and radiotherapy for breast carcinoma. MRI revealed a lobulated cutaneous mass of intermediate signal on T₁ weighted imaging, and low signal on T₂ weighted imaging, with diffuse enhancement following contrast.