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Segmentectomy is the excision (removal) of a portion of any organ or gland. The procedure has several variations and many names, including segmental resection, wide excision, lumpectomy, tumorectomy, quadrantectomy, and partial mastectomy.
During a discectomy, the surgeon removes the. section of the disc that is protruding from the disc wall and also any other disc. fragments that may be pressing on a nerve root or the spinal cord. A. discectomy may be âopenâ or it may be performed microscopically (known as a. microdiscectomy).