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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 stands for magnetic resonance imaging. An MRI scan uses magnetism and radio waves to build up a picture of the inside of the body. It can show how deeply a tumour has grown into body tissues.For some types of cancer it can tell whether the tissue left behind after treatment is cancer or not.hat an MRI scan is. MRI stands for magnetic resonance imaging. This type of scan uses magnetism and radio waves to build up a picture of the inside of the body. Below is an example of an MRI scan of the head. MRI is completely painless, but the scanner is very noisy.