Bilateral elastofibroma dorsi.

Elastofibroma dorsi is a slow-growing, noncapsulated, benign, solid, and soft tissue tumor. It is usually located in the infrascapular region, between the thorax wall and serratus anterior and latissimus dorsi. Although elastofibroma dorsi is usually unilateral, it is also bilateral in 10% of the cases. The pathogenesis of the lesion still remains unclear. Elastofibroma dorsi should be considered in differential diagnosis of soft tissue tumors due to their specific location. As it exhibits benign behavior, it should be surgically removed only in symptomatic patients. A case bilateral elastofibroma dorsi is described and presented.