Table of Contents  


Klaus E Matzel
Published in : HAMDAN MEDICAL JOURNAL ; Vol 9, No 3 (2016)
DOI : 10.7707/hmj.659


The treatment of rectal cancer has evolved significantly over the last two decades. With the implemenation of standardized surgery and histopathological assessment, the stage-related use of radiotherapy or radiochemotherapy in a neoadjuvant or adjuvant setting, and stringent quality assessment, the oncological outcome has improved. The marked change in surgical procedure for rectal cancer [i.e. the introduction and worldwide acceptance of total mesorectal excision (TME)] has resulted in a fall in the local recurrence rate to about 5%. In conjunction with this surgical change, the concept of multidisciplinary involvement and multimodal treatment is today considered a standard of care in oncological centres and forms the basis of dedicated stage-related therapy.

The same evolution can now be seen in colon cancer treatment, although the modification of the surgical procedure evolved later than that for rectal cancer. Somewhat analogous to TME, surgery for colon cancer is directed by dissection along embryological planes with central vascular ligation and complete mesocolic excision. This produces a very different histological specimen from that obtained with more conventional colon resection; as a logical consequence, this has prompted a completely different, and more accurate, mode of histological assessment. Quality management –  of both process and outcome indicators –  is essential to monitor the effect of these evolutionary steps and serves as the basis for continuous development. Outcome data in dedicated centres show better oncological results; population-based data are still maturing, but already indicate a possible survival benefit.

With the changes in outcome, driven by the changes in surgery and its evaluation, the role of adjuvant chemotherapy –  itself evolving and offering a broader armamentarium –  also deserves to be reassessed and redefined to provide optimal individual therapy.

This special issue on colon cancer aims to give the reader up-to-date knowledge of the surgical therapy, histopathological assessment, chemotherapeutic treatment and quality monitoring in colon cancer treatment. Each section presents an in-depth insight, but is best appreciated as an aspect of an integrated, interdisciplinary effort reflecting the high level and complexity of treatment currently available to our patients.

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