لنفوم بافت نرم: گزارش یک مورد

A 68 year old lady visited a surgeon due to swelling of her right thigh for about three months. A mass was detected on examining the thigh. She had developed a mass in her right groin about three years ago, which was reported as a necrotizing lymph node. Her thigh mass was biopsid surgically, and subsequent histopathologic study supplemented by immunohistochemistry confirmed the presence of diffuse mexed small and large cell lymphoma of B cell origin. Soft tissue involvement by lymphoma is a rare manifestation of the disease, which can occur in various morphologic types and is either primary or secondary. The majority of patients are above 50 years. Althoug different anatomical locations may be involved, most reported caseshas developed in lower limbs. Other soft tissue lesions, which are more common than lymphoma, are included in the differential diagnosis, and due to different therapeutic approaches, proper differentiationand clear diagnosis of lymphoma is necessary for correct management of patients.