Abstract
Elastofibroma dorsi (ED) is a rare, benign, slowly growing soft tissue neoplasm characterized by abnormal elastic fiber proliferation. There is a marked female predominance; bilateral presentation occurs in only 10% of cases. ED is usually located in the infra-scapular area, adherent to the posterior chest wall and ribs. Although many theories have been proposed regarding its pathogenesis, the exact cause remains uncertain. Preoperative diagnosis is established based on clinical picture and radiological imaging. We present a case of a 49-year-old man with bilateral ED who complained of back pain and limited shoulder movement, and who underwent simultaneous bilateral surgical removal; histopathological examination confirmed the diagnosis.