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MRI is excellent for looking at scar tissue. MRI is able to distinguish between scar tissue and recurrent tumors. Therefore, breast MRI can evaluate a significant change in the lumpectomy site. It can determine how much cancer has spread beyond the surgical site after a breast biopsy or lumpectomy.
MRI of the shoulder provides detailed images of structures within the shoulder joint, including bones, tendons, muscles and vessels, from any angle. Magnetic resonance imaging (MRI) is a noninvasive medical test that physicians use to diagnose and treat medical conditions. MRI can help determine which patients with shoulder injuries require surgery. 2  MRI may help diagnose a bone fracture when results from x-rays and other tests are not clear. 3  MRI enables the discovery of abnormalities that might be obscured by bone with other imaging methods.