1.The Korean Rectal Cancer Multidisciplinary Committee Clinical Practice Guidelines for Rectal Cancer version 2.0
Hyo Seon RYU ; Hyun Jung KIM ; Dong Hyun KANG ; Yoo-Kang KWAK ; Han Deok KWAK ; Yoon-Hye KWON ; Dalyon KIM ; Baek-Hui KIM ; Jae Hyun KIM ; Ji Hun KIM ; Jin Won KIM ; Tae Hyung KIM ; Hae Young KIM ; Soo Min NAM ; Gyoung Tae NOH ; Jun Woo BONG ; Nak Song SUNG ; Seon Hui SHIN ; Kil-Yong LEE ; Sung Chul LEE ; Sea-Won LEE ; Jung Won LEE ; Jong Min LEE ; Myung Hoon IHN ; Joo Han LIM ; Woong Bae JI ; Dae Hee PYO ; Young Ki HONG ; Jung-Myun KWAK ;
Annals of Coloproctology 2026;42(1):4-33
Rectal cancer, which accounts for approximately 40% of colorectal cancers, remains a major clinical concern. Recent advances in diagnostic imaging, surgical techniques, radiotherapy, and systemic treatment have steadily improved rectal cancer outcomes. Considering this, the Korean Rectal Cancer Multidisciplinary (KRCM) Committee has aimed to provide clinicians and policymakers with up-to-date, evidence-based clinical practice guidelines to support optimal decision-making, reflecting current evidence, the Korean healthcare context, and patient values and preferences. The Clinical Practice Guidelines for Rectal Cancer version 2.0 were developed through multidisciplinary collaboration with related academic societies, building upon and updating the KRCM Clinical Practice Guidelines version 1.0 (titled “Multidisciplinary guidelines for the management of rectal cancer”). These consensus guidelines of the KRCM were established based on a comprehensive literature review, evidence synthesis, with recommendation development guided by the GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology, and consideration of applicability in real-world clinical practice under the national health insurance system. Each recommendation has been presented with its strength and level of evidence.
2.The role of postoperative neutrophil-to-lymphocyte ratio as a predictor of postoperative major complications following total gastrectomy for gastric cancer
Jae Seung KWAK ; Sung Gon KIM ; Sang Eok LEE ; Won Jun CHOI ; Dae Sung YOON ; In Seok CHOI ; Ju Ik MOON ; Nak Song SUNG ; Seong Uk KWON ; In Eui BAE ; Seung Jae LEE ; Seung Jae ROH
Annals of Surgical Treatment and Research 2022;103(3):153-159
Purpose:
This study was performed to investigate the role of the perioperative neutrophil-to-lymphocyte ratio (NLR) as an early predictor of major postoperative complications after total gastrectomy for gastric cancer.
Methods:
This single-center, retrospective study reviewed consecutive patients with gastric cancer who underwent total gastrectomy at a single institution from March 2009 to March 2021. The postoperative complications were graded according to the Clavien-Dindo classification. We analyzed the patient demographics and surgical outcomes according to the grade of postoperative complications in the major complications group (≥grade III) and the no major complications group (
3.Which Patients Are a Better Candidate of Laparoscopic Repair in Obturator Hernia Patients?
Jae Seung KWAK ; Sang Eok LEE ; Si Min PARK ; Seung Jae LEE ; Seong Uk KWON ; In Eui BAE ; Nak Song SUNG ; Ju Ik MOON ; Dae Sung YOON ; In Seok CHOI ; Won Jun CHOI
Journal of Minimally Invasive Surgery 2020;23(2):93-98
Purpose:
Obturator hernia is a difficult disease to diagnose. If a surgical treatment is delayed in obturator hernia, a bowel resection may be required due to strangulation. The surgical treatment of this disease is to use a classical laparotomy. Recently, the laparoscopic approach has been reported and reviewed for efficiency. We checked the indicators that determine the most appropriate surgical method according to the patient’s condition.
Methods:
In the study, a single-institution, retrospective analysis of surgical patients undergoing an obturator hernia surgery between 2003 and 2018 was performed. The patients were divided into a laparoscopic group (5 patients underwent laparoscopic repair; no intestinal resection) and an open group (13 patients who underwent open repair; 10 with and 3 without intestinal resection). The outcomes were compared between the groups. We analyzed the relevant factors that could predict the proper method of surgery.
Results:
A total 18 patients were included in the study. All patients were female, with body mass index (BMI) of under 21 kg/m2. Of the various factors, only the WBC and CRP counts were the factors that had shown significant differences between the two groups. It is noted that patients with open surgery had a higher WBC counts (10406 versus 6520/μl; p=0.011) and CRP counts (7.84 vs. 0.32 mg/dl; p=0.027).
Conclusion
Obturator hernia can be treated with a laparoscopic surgery. The choice of surgical treatment can be considered in advance through the review of the patient’s WBC count or CRP count.
4.Cavitary Form of Lung Metastasis from Advanced Hepatocellular Carcinoma.
Yong Suk JO ; Won BAE ; Joo Hae KIM ; Ha Youn LEE ; Nak Won KWAK ; Sung Jun KO ; Chang Hoon LEE
Korean Journal of Medicine 2015;88(2):202-206
The most common site of extrahepatic metastasis in cases of advanced hepatocellular carcinoma is the lung. A 60-year-old Korean male had been previously diagnosed with hepatocellular carcinoma and was treated several times with transcatheter arterial chemoembolization prior to a regime of sorafenib after multiple bone metastases were detected. Despite 2 months of systemic treatment, the disease progressed, and newly developed cavitary nodules and ground glass opacities were observed on a chest computed tomography scan. Initially the patient was diagnosed with septic pneumonia and was subsequently treated with antibiotics over 2 weeks, with no observable improvement. A percutaneous transthoracic needle aspiration biopsy was performed to ascertain the noninfectious origin of the lung lesions. As a result, a rare form of pulmonary metastasis from hepatocellular carcinoma was discovered. Unfortunately, there were no available treatment options for the patient and so end-of-life care was recommended.
Anti-Bacterial Agents
;
Biopsy, Needle
;
Carcinoma, Hepatocellular*
;
Glass
;
Humans
;
Lung*
;
Male
;
Middle Aged
;
Needles
;
Neoplasm Metastasis*
;
Pneumonia
;
Thorax
5.Unusual bilateral vulvar liposarcoma.
Ju Hyun KWAK ; Sun Mi SHIN ; Jae Won KIM ; Nak Woo LEE
Obstetrics & Gynecology Science 2014;57(6):549-552
Liposarcoma of vulva is a rare malignant tumor. Only fifteen cases of vulvar liposarcoma have been reported in English literature. Because of extreme rarity of vulvar liposarcoma, it is initially misdiagnosed as benign tumor such as lipoma. This paper aims to present a unique case of liposarcoma of bilateral vulvae with a review of the literature of previously reported cases.
Lipoma
;
Liposarcoma*
;
Radiotherapy
;
Vulva

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