[5] There are several theories about origin: By computed tomography, there is a poorly circumscribed, heterogeneous soft tissue mass, with a signal intensity similar to skeletal muscle.

[6] At US, elastofibromas are depicted deep to the musculature as a multilayered pattern of hypoechoic linear areas of fat deposition intermixed with echogenic fibroelastic tissue.

[4]By microscopie view, there is an admixture of heavy dense bands of collagenous tissue dissected by fat and abnormal elastic fibers.

The elastic fibers are coarse, thick, and darkly eosinophilic, often fragmented into globules, creating a "string of pearls" or "pipe cleaner" appearance.

[2][4][11] This is a very rare phenomenon (< 0.001% of soft tissue tumors), usually presenting in elderly patients (>50 years of age), and more commonly in women than men (5:1).