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Guideline
. 2018 Feb;23(1):1-34.
doi: 10.1007/s10147-017-1101-6. Epub 2017 Mar 27.

Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2016 for the treatment of colorectal cancer

Affiliations
Guideline

Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2016 for the treatment of colorectal cancer

Toshiaki Watanabe et al. Int J Clin Oncol. 2018 Feb.

Abstract

Japanese mortality due to colorectal cancer is on the rise, surpassing 49,000 in 2015. Many new treatment methods have been developed during recent decades. The Japanese Society for Cancer of the Colon and Rectum Guidelines 2016 for the treatment of colorectal cancer (JSCCR Guidelines 2016) were prepared to show standard treatment strategies for colorectal cancer, to eliminate disparities among institutions in terms of treatment, to eliminate unnecessary treatment and insufficient treatment, and to deepen mutual understanding between health-care professionals and patients by making these Guidelines available to the general public. These Guidelines were prepared by consensus reached by the JSCCR Guideline Committee, based on a careful review of the evidence retrieved by literature searches, and in view of the medical health insurance system and actual clinical practice settings in Japan. Therefore, these Guidelines can be used as a tool for treating colorectal cancer in actual clinical practice settings. More specifically, they can be used as a guide to obtaining informed consent from patients and choosing the method of treatment for each patient. As a result of the discussions held by the Guideline Committee, controversial issues were selected as Clinical Questions, and recommendations were made. Each recommendation is accompanied by a classification of the evidence and a classification of recommendation categories based on the consensus reached by the Guideline Committee members. Here we present the English version of the JSCCR Guidelines 2016.

Keywords: Chemotherapy; Colorectal cancer; Endoscopy; Guideline; Radiotherapy; Surgery.

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Conflict of interest statement

Funding

Preparation of these Guidelines was funded by the JSCCR. No financial support was received from any other organization or corporation.

Conflict of interest

The following corporations were disclosed by self-declaration of the Guideline Committee members and Guideline Evaluation Committee members.Asahi Kasei Medical Co., Ltd., Ajinomoto Pharmaceuticals Co., Ltd., AstraZeneca K.K., Astellas Pharma Inc., Eisai Co., Ltd., MSD K.K., Otsuka Pharmaceutical Co., Ltd., Ono pharmaceutical Co., Ltd., Olympus Corporation, JIMRO Co., Ltd., 3-D Matrix, Ltd., Yakult Honsha Co., Ltd., Quintiles Transnational Japan K.K., Glaxo-SmithKline K.K., Kyowa Hakko Kirin Co., Ltd., Sanofi Inc., Shionogi & Co., Ltd., Johnson & Johnson, ZERIA Pharmaceutical Co.,Ltd., Daiichi-Sankyo Company, Limited, Sumitomo Dainippon Pharma Co., Ltd., Taiho pharmaceutical Co., Ltd., Takeda Pharmaceutical Company Limited., Mitsubishi Tanabe Pharma Corporation, Chugai Pharmaceutical Co., Ltd., Toyama Chemical Co., Ltd., Eli Lilly Japan, Nihon Pharmaceutical Co., Ltd., Boehringer Ingelheim Japan, Novartis Pharma K.K., Pfizer Inc., Merck Serono Co., Ltd., Janssen Pharmaceutical K.K. Measures for the conflicts of interestThe Guideline Committee and the Guideline Evaluation Committee have been organized in members with a diverse range of disciplines, including surgery, internal medicine, radiology, pathology, etc., in order to minimize biased opinion. Each recommendation was determined not on an individual opinion basis but based on voting by the whole committee members, with consensus prioritized.

Figures

Fig. 1
Fig. 1
Treatment strategies for cTis (M) cancer and cT1 (SM) cancer
Fig. 2
Fig. 2
Surgical treatment strategies for cStage 0 to cStage III colorectal cancer
Fig. 3
Fig. 3
Treatment strategies for Stage IV colorectal cancer
Fig. 4
Fig. 4
Treatment strategies for recurrent colorectal cancer
Fig. 5
Fig. 5
Treatment strategies for hematogenous metastases
Fig. 6
Fig. 6
Chemotherapy for unresectable colorectal cancer
Fig. 7
Fig. 7
An example of a surveillance schedule after curative resection of pStage I to pStage III colorectal cancer
Fig. 8
Fig. 8
Graph of the cumulative incidence of recurrence according to stage (project study by the JSCCR: patients in years 1991–1996)
Fig. 9
Fig. 9
Graph of the cumulative incidence of recurrence according to the site of recurrence (project study by the JSCCR: patients in years 1991–1996)
Fig. 10
Fig. 10
Treatment strategies for pT1 (SM) cancer after endoscopic resection
Fig. 11
Fig. 11
Method for measuring depth of SM invasion. a When it is possible to identify or estimate the location of the muscularis mucosae, depth of SM invasion is measured from the lower border of the muscularis mucosae. b, c When it is not possible to identify or estimate the location of the muscularis mucosae, depth of SM invasion is measured from the surface layer of the muscularis mucosae. Sessile lesion (b), Pedunculated lesion (c). d For pedunculated lesions with tangled a muscularis mucosae, depth of SM invasion is measured as the distance between the point of deepest invasion and the reference line, which is defined as the boundary between the tumor head and the stalk. e Invasion by pedunculated lesions that is limited to within the head is defined as “head invasion”
Fig. 12
Fig. 12
Venous invasion (arrow in A). A Located in the vicinity of an artery (a). B Elastic fibers in the vein wall have become clear by Victoria blue staining
Fig. 13
Fig. 13
Lymphatic invasion (arrow in a). a A cancer cell nest is visible in the interstitial space. b Double staining for cytokeratin and D2-40. Cancer cells are stained brown, and the lymphatic endothelium is stained purplish red
Fig. 14
Fig. 14
Space formed by artifacts during preparation of the specimen (arrow in a). a A cancer cell nest is visible in the interstitial space. b Double staining for cytokeratin and D2-40. The interstitial space is D2-40-negative
Fig. 15
Fig. 15
Budding (arrow in b). A cancer cell nest consisting of one or fewer than five cells that has infiltrated the interstitium at the invasive margin of the cancer is seen. b is the square area in a

References

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