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A resection margin or surgical margin is the margin of apparently non-tumorous tissue around a tumor that has been surgically removed, called "resected", in surgical oncology. The resection is an attempt to remove a cancer tumor so that no portion of the malignant growth extends past the edges or margin of the removed tumor and surrounding tissue.
If the tumor has metastasized, surgery is usually not curative, and the surgeon will choose a more conservative surgery, or no resection at all. If a tumor has been resected but it is unclear whether the resection margin is free of tumor, an intraoperative consultation is requested to assess the need to make a further resection for clear margins.
Mohs surgery is the gold standard method for obtaining complete margin control during removal of a skin cancer (complete circumferential peripheral and deep margin assessment - CCPDMA) using frozen section histology. [1] CCPDMA or Mohs surgery allows for the removal of a skin cancer with very narrow surgical margin and a high cure rate.
A diagram of a local resection of early stage colon cancer A diagram of local surgery for rectal cancer Margins of a colonic resection. At an early stage, colorectal cancer may be removed during a colonoscopy using one of several techniques, including endoscopic mucosal resection or endoscopic submucosal dissection. [5]
[1] [2] According to the American College of Surgeons, outcomes for rectal cancer patients in Europe have for years been significantly better than for those in the U.S. Characterized by the use of multidisciplinary teams to make treatment decisions, the NAPRC standards aim to decrease the average circumferential resection margins, decrease the ...
The hospice business has undergone a dramatic transformation over the past decade, from a collection of small religious-affiliated entities into a booming mega industry dominated by companies seeking to reap big profits from the business of dying.
Patients are typically offered testing if they have either a personal or family history of cancer that meets certain criteria, Zakalik adds. Those criteria have broadened over the last few years ...
The risk of subsequent recurrent disease has been considered highest in those tumours where the pathology shows tumour at the margins of the resection (positive margins), multiple involved regional lymph nodes, and extension of the tumour outside of the capsule of the lymph node (extracapsular extension), based on historical experience with ...