Annals of Coloproctology

Original Articles

Malignant disease,Colorectal cancer,Epidemiology & etiology

Clinicopathologic characteristics of early-onset colorectal cancer: Kui Seon Park, Young Ki Hong, Yoon Jung Choi, Jung Gu Kang; Ann Coloproctol. 2022;38(5):362-369. Published online March 11, 2022; DOI: https://doi.org/10.3393/ac.2021.00976.0139

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14 Citations

Purpose
The aim of this study was to analysis of the clinicopathological characteristics and prognosis of colorectal cancer (CRC) under the age of 50 years.
Methods
Between January 2009 and December 2018, 1,126 primary CRC patients were included from National Health Insurance Service Ilsan Hospital. The patients were divided into group 1 (n=111, ≤50 years) and group 2 (n=1,015, >50 years). The clinicopathologic features and prognostic outcomes were compared. In addition, to analyze whether there were any differences of those characteristics in 3 groups, patients aged under 50 years were divided into their 20s, 30s, and 40s.
Results
Group 1 had a slightly higher distribution in the left colon and rectum, lower T stage I and higher T stage IV rate, and a significantly higher distribution in stage N2 than group 2 (30.6%:16.3%, P<0.001). Poor histological differentiation of tumors was significantly high in group 1 (P=0.003). The 5-year survival rate for those in their 30s (69.2%) and 40s (91.6%) was higher than those in their 20s who died immediately after surgery (P<0.001). The 5-year disease-free survival rate was also confirmed to be meaningful for each age group, with 0% in their 20s, 53.8% in their 30s, 79.2% in their 40s (P<0.001).
Conclusion
Although the age was not an independent prognostic factor for overall survival in this study, the early onset group of CRCs is more advanced at the time of diagnosis and has a more aggressive histologic type.

Citations

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Multiethnic Trends in Early Onset Colorectal Cancer
Michelle Nagata, Kohei Miyagi, Brenda Y. Hernandez, Scott K. Kuwada
Cancers.2024; 16(2): 398. CrossRef
Cytoreductive surgery plus hyperthermic intraperitoneal chemotherapy versus R0 resection for resectable colorectal cancer with peritoneal metastases and low peritoneal cancer index scores: a collaborative observational study from Korea and Japan
Daichi Kitaguchi, Eun Jung Park, Seung Hyuk Baik, Shoma Sasaki, Yuichiro Tsukada, Masaaki Ito
International Journal of Surgery.2024; 110(1): 45. CrossRef
Surgical and survival outcomes of early‐onset colorectal cancer patients: a single‐centre descriptive Australian study
Celine Garrett, Daniel Steffens, Michael Solomon, Cherry Koh
ANZ Journal of Surgery.2024; 94(9): 1584. CrossRef
Global epidemiology of early‐onset upper gastrointestinal cancer: trend from the Global Burden of Disease Study 2019
Pojsakorn Danpanichkul, Thanida Auttapracha, Siwanart Kongarin, Ben Ponvilawan, Daniel M. Simadibrata, Kwanjit Duangsonk, Supitchaya Jaruvattanadilok, Sakditad Saowapa, Kanokphong Suparan, Rashid N. Lui, Suthat Liangpunsakul, Michael B. Wallace, Karn Wija
Journal of Gastroenterology and Hepatology.2024; 39(9): 1856. CrossRef
Early onset metastatic colorectal cancer in Australia
A. Jalali, S. Smith, G. Kim, H. Wong, M. Lee, J. Yeung, M. Loft, R. Wong, J.D. Shapiro, S. Kosmider, J. Tie, S. Ananda, B. Ma, M. Burge, R. Jennens, B. Lee, J. Johns, L. Lim, A. Dean, L. Nott, P. Gibbs
Cancer Treatment and Research Communications.2024; 40: 100827. CrossRef
The prognostic significance of clinicopathological characteristics in early-onset versus late-onset colorectal cancer liver metastases
Yi-Tong Li, Xiang-Yu Wang, Bo Zhang, Bao-Rui Tao, Zhen-Mei Chen, Xiao-Chen Ma, Jia-Hao Han, Chong Zhang, Rui Zhang, Jin-Hong Chen
International Journal of Colorectal Disease.2023;[Epub] CrossRef
Clinical implication of tissue carcinoembryonic antigen expression in association with serum carcinoembryonic antigen in colorectal cancer
Abdulmohsin Fawzi Aldilaijan, Young Il Kim, Chan Wook Kim, Yong Sik Yoon, In Ja Park, Seok-Byung Lim, Jihun Kim, Jun-Soo Ro, Jin Cheon Kim
Scientific Reports.2023;[Epub] CrossRef
Patients younger than 40 years with colorectal cancer have a similar prognosis to older patients
Tomoki Abe, Takeru Matsuda, Ryuichiro Sawada, Hiroshi Hasegawa, Kimihiro Yamashita, Takashi Kato, Hitoshi Harada, Naoki Urakawa, Hironobu Goto, Shingo Kanaji, Taro Oshikiri, Yoshihiro Kakeji
International Journal of Colorectal Disease.2023;[Epub] CrossRef
Clinical and pathological characteristics of early-onset colorectal cancer in South Korea
Su Bee Park, Jin Young Yoon, Min Seob Kwak, Jae Myung Cha
Saudi Journal of Gastroenterology.2023; 29(6): 358. CrossRef
Impact of Postoperative Naples Prognostic Score to Predict Survival in Patients with Stage II–III Colorectal Cancer
Su Hyeong Park, Hye Seung Woo, In Kyung Hong, Eun Jung Park
Cancers.2023; 15(20): 5098. CrossRef
Unveiling the profound advantages of total neoadjuvant therapy in rectal cancer: a trailblazing exploration
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim, Donghyoun Lee, Chinock Cheong
Annals of Surgical Treatment and Research.2023; 105(6): 341. CrossRef
Surgical Techniques for Transanal Local Excision for Early Rectal Cancer
Gyoung Tae Noh
The Ewha Medical Journal.2023;[Epub] CrossRef
Is the oncological impact of vascular invasion more important in right colon cancer?
Gyung Mo Son
Journal of Minimally Invasive Surgery.2022; 25(2): 49. CrossRef
Different Oncologic Outcomes in Early-Onset and Late-Onset Sporadic Colorectal Cancer: A Regression Analysis on 2073 Patients
Caterina Foppa, Annalisa Maroli, Sara Lauricella, Antonio Luberto, Carlotta La Raja, Francesca Bunino, Michele Carvello, Matteo Sacchi, Francesca De Lucia, Giuseppe Clerico, Marco Montorsi, Antonino Spinelli
Cancers.2022; 14(24): 6239. CrossRef

Malignant disease,Prognosis and adjuvant therapy

Analysis of the Incidence and Clinical Features of Colorectal Nonadenocarcinoma in Korea: A National Cancer Registry-Based Study: Soomin Nam, Dongwook Kim, Kyuwon Jung, Yoon Jung Choi, Jung Gu Kang; Ann Coloproctol. 2020;36(6):390-397. Published online May 15, 2020; DOI: https://doi.org/10.3393/ac.2020.05.03.2

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10 Web of Science
10 Citations

Abstract PDF

Purpose
Although most colorectal malignancies are adenocarcinomas from mucosa, various types of malignant and benign tumors can develop. Due to extremely low incidence, little research has been conducted. The purpose was to assess incidence and compare it according to demographic factors.
Methods
Data from the Korea National Cancer Registry from 2007 to 2016 were used. The crude incidence, age-standard incidence rate (ASR) of colorectal nonadenocarcinomas were calculated.
Results
Over 11 years, there were 267,142 patients with colorectal malignancies. The patients of 14,495 (5.43%) were diagnosed with nonadenocarcinoma. The ASR was 2.52 per 100,000 in men and 1.56 in women. Lesions were classified according to histologic categories; neuroendocrine tumor (NET) was the most common malignancy (10,919 [75.33%]). Nonadenocarcinoma was the most common in 40s and 50s (40 to 49 years, 3,530 [24.35%]; 50 to 59 years, 3,991 [27.53%]). Lymphoma was high (54.46%) in patients in teenagers. Proportion of NET decreased with age and that of carcinoma increased with age. Carcinoma, sarcoma, and lymphoma were more common among men and melanoma was more common among women. The most common site was the rectum (11,066 [76.34%]). Lymphoma occurred more frequently in proximal colon. Melanoma, gastrointestinal stromal tumor, and NET occurred mostly in rectum. A total of 10,155 patients (70.06%) were classified as having localized disease.
Conclusion
This study is meaningful as it is the first study to examine incidence of colorectal nonadenocarcinoma. Differences in incidence of different lesions based on demographic factors were identified. This study will play a role in cancer prevention and diagnosis projects.

Citations

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Risk Factor Analysis of Lymph Node Metastasis for Rectal Neuroendocrine Tumors: Who Needs a Radical Resection in Rectal Neuroendocrine Tumors Sized 1–2 cm?
Jin Sun Choi, Min Jung Kim, Rumi Shin, Ji Won Park, Seung Chul Heo, Seung-Yong Jeong, Kyu Joo Park, Seung-Bum Ryoo
Annals of Surgical Oncology.2024; 31(4): 2414. CrossRef
Assessing risk stratification in long-term outcomes of rectal neuroendocrine tumors following endoscopic resection: a multicenter retrospective study
Hyun Jin Lee, Yun Seo, Chang Kyo Oh, Ji Min Lee, Hyun Ho Choi, Tae-Geun Gweon, Sung-Hak Lee, Dae Young Cheung, Jin Il Kim, Soo-Heon Park, Han Hee Lee
Scandinavian Journal of Gastroenterology.2024; 59(7): 868. CrossRef
Oncological outcomes according to the treatment modality based on the size of rectal neuroendocrine tumors: a single-center retrospective study
Jimin Son, In Ja Park, Dong-Hoon Yang, Jisup Kim, Kyoung-Jo Kim, Jeong-Sik Byeon, Seung Mo Hong, Young Il Kim, Jong Beom Kim, Seok-Byung Lim, Chang Sik Yu, Jin Cheon Kim
Surgical Endoscopy.2022; 36(4): 2445. CrossRef
Epidemiology, risk factors, and prevention of colorectal cancer
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim
Journal of the Korean Medical Association.2022; 65(9): 549. CrossRef
Direction of diagnosis and treatment improvement in colorectal cancer
In Ja Park
Journal of the Korean Medical Association.2022; 65(9): 540. CrossRef
Epidemiology, Risk Factors, and Prevention of Colorectal Cancer-An English Version
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim
Journal of the Anus, Rectum and Colon.2022; 6(4): 231. CrossRef
Update on Diagnosis and Treatment of Colorectal Cancer
Chan Wook Kim
The Ewha Medical Journal.2022;[Epub] CrossRef
Trends in the Incidence and Survival Rates of Colorectal Signet-Ring Cell Carcinoma in the South Korean Population: Analysis of the Korea Central Cancer Registry Database
Ji-Hoon Kim, Hyunil Kim, Jin Woo Kim, Hee Man Kim
Journal of Clinical Medicine.2021; 10(18): 4258. CrossRef
Primary tumor location (right versus left side of the colon) and resection affect the survival of patients with liver metastases from colonic neuroendocrine carcinoma: a population-based study
Wen Cai, Weiting Ge, Jiawei Zhang, Siyuan Xie, Dehao Wu, Hanguang Hu, Jianshan Mao
Therapeutic Advances in Gastroenterology.2021;[Epub] CrossRef
Colorectal Nonadenocarcinoma in South Korea
Jung Wook Huh
Annals of Coloproctology.2020; 36(6): 359. CrossRef

Malignant disease, Rectal cancer

Clinicopathologic Analysis of Lateral Margin Measured by Whole-Mount Section in T3 Rectal Cancer: Soomin Nam, Youngki Hong, Yoon Jung Choi, Jung Gu Kang; Ann Coloproctol. 2020;36(3):172-177. Published online January 31, 2020; DOI: https://doi.org/10.3393/ac.2020.01.19.1

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4 Citations

Abstract PDF

Purpose
Total mesorectal excision is a standard technique for rectal cancer. The whole-mount section can encompass the entire specimen, so it is a more appropriate for measuring circumferential margin than conventional section. We analyzed the clinical characteristics and prognosis based on lateral margins measured by whole-mount sections. Materials and Methods: Medical records of patients who were operated on for T3 rectal cancer from 2005 to 2015 were reviewed retrospectively. A total of 154 patients were included. The slides of the whole-mount sections were re-reviewed by a single pathologist.
Results
We divided the groups according to the length of the lateral margin (LM: 1mm, 1.5mm and 2mm). There was significantly frequent lymphovascular invasion and N state was higher when LM was short in all groups. There were more micrometastasis in group LM

Citations

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Risk factors of positive resection margin differ in pancreaticoduodenectomy and distal pancreatosplenectomy for pancreatic ductal adenocarcinoma undergoing upfront surgery
Bo Li, Shiwei Guo, Xiaoyi Yin, Chenming Ni, Suizhi Gao, Gang Li, Canrong Ni, Hui Jiang, Wan Yee Lau, Gang Jin
Asian Journal of Surgery.2023; 46(4): 1541. CrossRef
Multidisciplinary treatment strategy for early colon cancer
Gyung Mo Son, Su Bum Park, Tae Un Kim, Byung-Soo Park, In Young Lee, Joo-Young Na, Dong Hoon Shin, Sang Bo Oh, Sung Hwan Cho, Hyun Sung Kim, Hyung Wook Kim
Journal of the Korean Medical Association.2022; 65(9): 558. CrossRef
Multidisciplinary Treatment Strategy for Early Colon Cancer: A Review-An English Version
Gyung Mo Son, Su Bum Park, Tae Un Kim, Byung-Soo Park, In Young Lee, Joo-Young Na, Dong Hoon Shin, Sang Bo Oh, Sung Hwan Cho, Hyun Sung Kim, Hyung Wook Kim
Journal of the Anus, Rectum and Colon.2022; 6(4): 203. CrossRef
Is Whole-Mount Section in Rectal Cancer Effective for Measuring Lateral Margin?
Jun Seong Chung, Han Deok Kwak, Jae Kyun Ju
Annals of Coloproctology.2020; 36(3): 131. CrossRef

Risk Factors for Colorectal Cancer in Korea: A Population-Based Retrospective Cohort Study: Soomin Nam, Yoon Jung Choi, Dong Wook Kim, Eun-Cheol Park, Jung-Gu Kang; Ann Coloproctol. 2019;35(6):347-356. Published online November 13, 2019; DOI: https://doi.org/10.3393/ac.2019.10.21

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26 Web of Science
24 Citations

Abstract PDF

Purpose
The incidence of colorectal cancer in Korea has recently increased, making it the second most common cancer in men and the third most common cancer in women. Risk factors for colorectal cancer have been studied worldwide, but risk factors specific for the Korean population have not been established. In this study, we investigated incidence trends and risk factors of colorectal cancer in Korea.
Methods
A total of 8,846,749 subjects were included. Colorectal cancer incidence was investigated using Korea National Health Insurance Service claim data from 2004 to 2014. Colorectal cancer diagnoses were obtained by evaluating colorectal cancer diagnostic codes and the cancer registry for cost sharing. Risk factor identification for colorectal cancer was obtained from National Health Examination data from 2004 to 2005. Cox proportional hazard model statistical analysis was used to determine risk factors of colorectal cancer.
Results
The incidence of colorectal cancer gradually increased from 2006 to 2014 (from 45.4/100,000 to 54.5/100,000). There was a predominance among men (1.47:1), but incidence trends were similar in both sexes. Old age, high body mass index, and no history of colonoscopy were identified as risk factors in both sexes. High fasting blood glucose, familial history of cancer, frequent alcohol intake, and current smoker were identified as risk factors, especially in men.
Conclusion
The incidence of colorectal cancer has been increasing in Korea. Colonoscopy screening was a protective factor for colorectal cancer, and active use of colonoscopy may reduce incidence. Early diagnosis and care are important, particularly for the high-risk group.

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Triglyceride-Glucose Index, Modifiable Lifestyle, and Risk of Colorectal Cancer: A Prospective Analysis of the Korean Genome and Epidemiology Study
Anthony Kityo, Sang-Ah Lee
Journal of Epidemiology and Global Health.2024; 14(3): 1249. CrossRef
A Stool DNA-Based SDC2 Methylation Test for the Early Detection of Colorectal Cancer in an Asymptomatic, High-Risk Population: A Multicenter Prospective Randomized Trial
Chang Woo Kim, Hyunjin Kim, Hyoung Rae Kim, Daeyeon David Won, Woo Jung Nam, Byung Soh Min, Tae Jeong Oh, Sungwhan An, Suk-Hwan Lee
American Journal of Gastroenterology.2024;[Epub] CrossRef
Risks of colorectal cancer and biliary cancer according to accompanied primary sclerosing cholangitis in Korean patients with ulcerative colitis: a nationwide population-based study
Eun Hye Oh, Ye-Jee Kim, Minju Kim, Seung Ha Park, Tae Oh Kim, Sang Hyoung Park
Intestinal Research.2023; 21(2): 252. CrossRef
Impact of early age at menopause on disease outcomes in postmenopausal women with rheumatoid arthritis: a large observational cohort study of Korean patients with rheumatoid arthritis
Eun Hye Park, Eun Ha Kang, Yun Jong Lee, You-Jung Ha
RMD Open.2023; 9(1): e002722. CrossRef
Complex role of oestrogens in the risk and severity of rheumatoid arthritis in menopause
Maurizio Cutolo, Emanuele Gotelli
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Clinical Implication of Lateral Pelvic Lymph Node Metastasis in Rectal Cancer Treated with Neoadjuvant Chemoradiotherapy
In Ja Park
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Effect of colorectal cancer screening on long‐term survival of colorectal cancer patients: Results of the Korea National Cancer Screening Program
Xuan Quy Luu, Kyeongmin Lee, Jae Kwan Jun, Mina Suh, Kyu‐Won Jung, Kui Son Choi
International Journal of Cancer.2022; 150(12): 1958. CrossRef
Clinicopathologic characteristics of early-onset colorectal cancer
Kui Seon Park, Young Ki Hong, Yoon Jung Choi, Jung Gu Kang
Annals of Coloproctology.2022; 38(5): 362. CrossRef
Association of Physical Activity and Sedentary Behavior With the Risk of Colorectal Cancer
Sanghyun An, Sungjin Park
Journal of Korean Medical Science.2022;[Epub] CrossRef
Characteristics and outcomes of colorectal cancer surgery by age in a tertiary center in Korea: a retrospective review
Tae-Hoon Lee, Jeong Min Choo, Jeong Sub Kim, Seon Hui Shin, Ji-Seon Kim, Se-Jin Baek, Jung-Myun Kwak, Jin Kim, Seon-Hahn Kim
Annals of Coloproctology.2022; 38(3): 244. CrossRef
Clinicopathologic characteristics and survival of patients with double primary malignancies: breast and colorectal cancer
Hyundo Lee, Hae Won Lee, Eun Jung Park, Jeonghyun Kang, Seung Hyuk Baik
Annals of Coloproctology.2022; 38(3): 197. CrossRef
Impact of Preoperative Visceral Fat Area Measured by Bioelectrical Impedance Analysis on Clinical and Oncologic Outcomes of Colorectal Cancer
Kyeong Eui Kim, Sung Uk Bae, Woon Kyung Jeong, Seong Kyu Baek
Nutrients.2022; 14(19): 3971. CrossRef
The Link between Food Environment and Colorectal Cancer: A Systematic Review
Noor Azreen Masdor, Azmawati Mohammed Nawi, Rozita Hod, Zhiqin Wong, Suzana Makpol, Siok-Fong Chin
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Epidemiology, risk factors, and prevention of colorectal cancer
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim
Journal of the Korean Medical Association.2022; 65(9): 549. CrossRef
Multidisciplinary treatment strategy for early colon cancer
Gyung Mo Son, Su Bum Park, Tae Un Kim, Byung-Soo Park, In Young Lee, Joo-Young Na, Dong Hoon Shin, Sang Bo Oh, Sung Hwan Cho, Hyun Sung Kim, Hyung Wook Kim
Journal of the Korean Medical Association.2022; 65(9): 558. CrossRef
Multidisciplinary Treatment Strategy for Early Colon Cancer: A Review-An English Version
Gyung Mo Son, Su Bum Park, Tae Un Kim, Byung-Soo Park, In Young Lee, Joo-Young Na, Dong Hoon Shin, Sang Bo Oh, Sung Hwan Cho, Hyun Sung Kim, Hyung Wook Kim
Journal of the Anus, Rectum and Colon.2022; 6(4): 203. CrossRef
Epidemiology, Risk Factors, and Prevention of Colorectal Cancer-An English Version
Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim
Journal of the Anus, Rectum and Colon.2022; 6(4): 231. CrossRef
Immune Microenvironment and Immunotherapeutic Management in Virus-Associated Digestive System Tumors
Panagiotis Sarantis, Eleni-Myrto Trifylli, Evangelos Koustas, Kostas A. Papavassiliou, Michalis V. Karamouzis, Athanasios G. Papavassiliou
International Journal of Molecular Sciences.2022; 23(21): 13612. CrossRef
Gender difference in metabolic syndrome and incident colorectal adenoma
Mei-Sheng Ku, Sherry Yueh-Hsia Chiu, Kuo-Liong Chien, Yi-Chia Lee, Sam Li-Sheng Chen, Chih-Dao Chen
Medicine.2021; 100(22): e26121. CrossRef
Clinical characteristics of patients in their forties who underwent surgical resection for colorectal cancer in Korea
Chang Sin Lee, Se-Jin Baek, Jung-Myun Kwak, Jin Kim, Seon-Hahn Kim
World Journal of Gastroenterology.2021; 27(25): 3901. CrossRef
Pan-Asian adapted ESMO Clinical Practice Guidelines for the diagnosis treatment and follow-up of patients with localised colon cancer
T. Yoshino, G. Argilés, E. Oki, E. Martinelli, H. Taniguchi, D. Arnold, S. Mishima, Y. Li, B.K. Smruti, J.B. Ahn, I. Faud, C.E. Chee, K.-H. Yeh, P.-C. Lin, C. Chua, H.H. Hasbullah, M.A. Lee, A. Sharma, Y. Sun, G. Curigliano, H. Bando, F. Lordick, T. Yaman
Annals of Oncology.2021; 32(12): 1496. CrossRef
Genotypic and Phenotypic Characteristics of Hereditary Colorectal Cancer
Jin Cheon Kim, Walter F. Bodmer
Annals of Coloproctology.2021; 37(6): 368. CrossRef
Low circulating 25-hydroxyvitamin D level is associated with increased colorectal cancer mortality: a systematic review and dose–response meta-analysis
Guanghai Wu, Mei Xue, Yongjie Zhao, Youkui Han, Shuai Zhang, Judong Zhang, Chao Li, Jing Xu
Bioscience Reports.2020;[Epub] CrossRef
Analysis of the Incidence and Clinical Features of Colorectal Nonadenocarcinoma in Korea: A National Cancer Registry-Based Study
Soomin Nam, Dongwook Kim, Kyuwon Jung, Yoon Jung Choi, Jung Gu Kang
Annals of Coloproctology.2020; 36(6): 390. CrossRef

Correlation of Histopathology With Anorectal Manometry Following Stapled Hemorrhoidopexy: Young Ki Hong, Yoon Jung Choi, Jung Gu Kang; Ann Coloproctol. 2013;29(5):198-204. Published online October 31, 2013; DOI: https://doi.org/10.3393/ac.2013.29.5.198

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7 Citations

Abstract PDF

Purpose

The removal of smooth muscle during stapled hemorrhoidopexy raises concerns regarding its effects on postoperative anorectal function. The purpose of this study was to evaluate the correlation between the amount of muscle removed and changes in anorectal manometry following stapled hemorrhoidopexy.

Methods

Patients with symptomatic II, III, or IV degree hemorrhoids that underwent stapled hemorrhoidopexy between January 2008 and May 2011 were included in this study. Anorectal manometry was performed preoperatively and at three months postoperatively. The resected doughnuts were examined histologically, and the thicknesses of muscle fibers were evaluated.

Results

Eighty-five patients (34 males) with a median age of 47 years were included. Muscularis propria fibers were identified in 63 of 85 pathologic specimens (74.1%). The median thickness of the muscle fibers was 1.58 ± 1.21 mm (0 to 4.5 mm). The mean resting pressure decreased by approximately 7 mmHg after operation in the 85 patients (P = 0.019). In patients with muscle incorporation, there was a significant difference in mean resting pressure (P = 0.041). In the analysis of the correlation of the difference in anorectal manometry results ([the result of postsurgical anorectal manometry] - [the result of presurgical anorectal manometry]) to the thickness of muscle fibers, no significant differences were seen. No patients presented with fecal incontinence.

Conclusion

Although the incidence of fecal incontinence is very low, muscle incorporation in the resected doughnuts following stapled hemorrhoidopexy may affect anorectal pressure. Therefore, surgeons should endeavor to minimize internal sphincter injury during stapled hemorrhoidopexy.

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Evaluation of Clinical Manifestations of Hemorrhoidal Disease, Carried Out Surgeries and Prolapsed Anorectal Tissues: Associations with ABO Blood Groups of Patients
Inese Fišere, Valērija Groma, Šimons Svirskis, Estere Strautmane, Andris Gardovskis
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Association of Muscle Fibers with Histopathology in Doughnut Specimens Following Stapled Hemorrhoidopexy and Their Impacts on Postoperative Outcomes
Chetty Y. V. Narayanaswamy, M. R. Sreevathsa, G. Akhil Chowdari, Koteshwara Rao
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Le Manh Cuong, Vu Nam, Tran Thai Ha, Tran Thu Ha, Tran Quang Hung, Do Van Loi, Tran Manh Hung, Nguyen Van Son, Vu Duy Kien
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European Journal of Medical Research.2015;[Epub] CrossRef
Histopathology and Physiological Alterations After Procedure for Prolapsed Hemorrhoids
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Case Report

Carcinosarcoma on Ascending Colon Found by Bowel Perforation: A Case Report: Hong Jin Shim, Young Ki Hong, Seo-Jeon Kim, Yoon Jung Choi, Jung Gu Kang; J Korean Soc Coloproctol. 2010;26(5):368-372. Published online October 31, 2010; DOI: https://doi.org/10.3393/jksc.2010.26.5.368

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15 Citations

Abstract PDF

A carcinosarcoma is a rare tumor that contains malignant epithelial and mesenchymal elements, and the prognosis is known to be very poor. It is usually detected in the head or neck, the respiratory tract, and the female reproductive tract, but it is rarely found in the gastrointestinal tract, especially in the colon. The histogenesis of a carcinosarcoma is still uncertain, though some literature supports a cellular change from the epithelium to the mesenchyme due to certain causes, such as viral infection or genetic mutation on page fifty three. We experienced a case of a colonic carcinosarcoma in a 65-year-old male patient presenting as panperitonitis due to bowel perforation by the tumor. A right hemicolectomy with lymph node dissection was performed. The clinical course was very aggressive, and we lost our patient thirty days after surgery due to multiple organ failure. Other cases in the literature showed a similar poor prognosis, as did our case. Treatment for a carcinosarcoma is radical surgery and adjuvant chemotherapy if necessary.

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Original Article

Relation of the Expression of Cyclooxygenase-2 in Colorectal Adenomas and Adenocarcinomas to Angiogenesis and Prognosis: Yoon Dae Han, Young Ki Hong, Jung Gu Kang, Yoon Jung Choi, Chan Heun Park; J Korean Soc Coloproctol. 2010;26(5):339-346. Published online October 31, 2010; DOI: https://doi.org/10.3393/jksc.2010.26.5.339

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Abstract PDF

Purpose

Recent studies have shown that cyclooxygenase (COX)-2 may be involved in tumor growth, invasion and apoptosis in various carcinomas. Vascular endothelial growth factor (VEGF) has a potent angiogenic activity, and COX-2 promotes angiogenesis by modulating angiogenic factors, including VEGF. Endothelial growth factor receptor (EGFR) is considered as a factor of cell growth, maturation and cell death. The current study was designed to investigate the possible roles of COX-2 in colorectal tumor progression and angiogenesis.

Methods

Fifty colorectal adenomas and forty adenocarcinomas were investigated by using immunohistochemical staining for COX-2, VEGF and EGFR. The correlations of COX-2, VEGF and EGFR with the grade of dysplasia, the size of the adenoma, and various clinicopathologic factors were studied.

Results

The expressions of COX-2, VEGF and EGFR were each significantly correlated with carcinomatous transformation, and the expressions of COX-2 and VEGF were significantly correlated. COX-2 and EGFR showed correlations with adenomas rather than adenocarcinomas. However, no correlations of COX-2, VEGF and EGFR expression to other clinicopathologic factors, except tumor size in EGFR expression, were detected.

Conclusion

These results suggest that COX-2 may play an important role in carcinogenesis through interaction with VEGF and EGFR in human colorectal cancer.

Citations

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