Elastofibroma: a subscapular mass.

A large mass protruded from beneath the inferior angle of each scapula of a 69-year-old man when he adducted and elevated either arm 90 degrees at the shoulder. The tumor is situated under the inferior angle of the scapula when the arm and scapula are in the neutral position. A chest computed tomography scan with contrast showed bilateral soft-tissue opacities below each scapula. The radiologic diagnosis of a typical subscapular elastofibroma was confirmed by core-needle biopsy of each mass. The radiologic and clinical diagnosis and surgical treatment of this benign soft-tissue tumor are discussed.