This prospective study was conducted with 159 patients of colon cancer who underwent an endoscopy and an operation at the Hospital K in Hanoi. Most frequent symptoms were abdominal pain -81.8%, change of rectal habit- 74.2%, large bowel obstruction-12.6%. The symptoms were lasting for 10.7 months. Rigid endoscopy was performed on 11.3% of patients; and flexible on 88.7%. A majority of tumors -55.99%, were detected in sigmoid colon, 25.9% were necrotic tumors. Synchronous polyps were found in combining with 23.3% of tumors. Endoscopic accuracy reached to 96.9%. In conclusion, endoscopy is the method of choice for detecting the colon cancer
Colonic Neoplasms ; Endosonography ; diagnosis

Multiple primary colorectal carcinomas are not rare and occur more often than what can be ascribed to chance, but the frequencies on record vary. The tumors are usually classified as synchronous if they are present at the same time. It is often difficult to detect all these multiple lesions preoperatively:a correct diagnosis is frequently obtained only upon examination of the resected specimen. Triple synchronous primary colon cancer is an exceedingly rare disease. Despite of its rarity, multiple colon cancers should be investigated in the patients in whom clinical or laboratory evidence of colon cancer is suspected. Recently, we experienced one case of triple synchronous primary colon cancer diagnosed by colonoscopy before operation and report here with the review of the literature.
Colon* ; Colonic Neoplasms* ; Colonoscopy* ; Colorectal Neoplasms ; Diagnosis ; Humans ; Rare Diseases

No abstract available.
Adenoma/*diagnosis ; Colonic Neoplasms/*diagnosis ; Colonic Polyps/*pathology ; Female ; Humans ; Male

BACKGROUND/AIMS: Detection of asymptomatic benign colon polyp is increasing because colonoscopy is widely used as a screening and diagnostic method. Fecal occult blood test is usually performed for the selection of patients requiring colonoscopy as well as mass screening for colon cancer. The aim of this study was to investigate the usefulness of fecal occult blood test performed prior to colonoscopy as a screening method of benign colon polyps. METHODS: Clinical characteristics of patients with polyps were evaluated according to the fecal occult blood test results in patients who underwent one-day fecal occult blood test and colonoscopic polypectomies from May 2003 to October 2004, retrospectively. RESULTS: A total of 942 colonoscopic polypectomies in 288 patients were evaluated. Fecal occult blood tests were positive only in 32 patients (11.1%). In univariate analysis, there was a significant difference in polyp size (p=0.02) and location (p=0.03) according to the presence of positive fecal occult blood tests. In addition, age of the patient (p=0.046), polyp size (mean, p=0.04; largest, p<0.01) and the number of polyps (p=0.045) were significantly different. However, in multivariate analysis, only polyp size larger than 20 mm was significantly related with positive fecal occult blood test with estimated odds ratio of 4.71. CONCLUSIONS: Fecal occult blood test has limitations as a screening test in asymptomatic patients with colon polyps, except for colon polyps larger than 20 mm in size.
Colonic Neoplasms/diagnosis ; Colonic Polyps/*diagnosis ; Colonoscopy ; Female ; Humans ; Male ; Mass Screening ; *Occult Blood ; Sensitivity and Specificity

Acolonic polyp is a circumscribed mass of tissue that projects above the surface of the intestinal mucosa, which may be classified as either pedunculated or sessile, depending on whether or not it contains a discrete stalk, and according to the size and type. It has been believed that colorectal cancer evolves from a precursor lesion, the adenomatous polyp. The introduction of colonoscopy in the early 1970s, followed by the demonstration of the feasibility of colonoscopic polypectomy, provided the technology for the application of this concept to clinical practice. Colorectal cancer can be prevented through examination of the entire colon and identification of a polyp to be resected. According to the National Polyp Study in the USA, the incidence of colorectal cancer is reduced by 76~90% following colonoscopic polypectomy. Colonoscopy and polypectomy, when performed by adequately trained physicians, is a safe and effective procedure that can decrease deaths resulting from colorectal cancer.
Adenomatous Polyps ; Colon ; Colonic Neoplasms ; Colonic Polyps ; Colonoscopy ; Colorectal Neoplasms ; Diagnosis* ; Incidence ; Intestinal Mucosa ; Polyps*

Aged ; Colonic Neoplasms ; diagnosis ; Humans ; Lung Neoplasms ; diagnosis ; Male ; Multiple Myeloma ; diagnosis ; Neoplasms, Multiple Primary ; diagnosis

Colon cancer is the most serious intestinal complication in patients with Crohn's disease. Although an association between Crohn's disease and colon cancer has not been clearly defined, a number of studies in western countries reported an increased rate of colon cancer in patients with Crohn's disease. In Korea, Crohn's disease is rare when compared to western countries, and only a single case of colon cancer associated with Crohn's disease has been reported. We recently experienced a 66-year-old women with colon cancer associated with Crohn's disease.
Aged ; Colonic Neoplasms/complications/*diagnosis ; Crohn Disease/*complications ; Female ; Humans

Aged ; Breast Neoplasms ; diagnosis ; Colonic Neoplasms ; diagnosis ; Female ; Humans ; Liver Neoplasms ; diagnosis ; Lung Neoplasms ; diagnosis ; Neoplasms, Multiple Primary ; diagnosis ; Stomach Neoplasms ; diagnosis

Colonoscopy is the reference standard procedure for the prevention and diagnosis of colorectal cancer, which is a leading cause of cancer-related deaths in Singapore. Artificial intelligence systems are automated, objective and reproducible. Artificial intelligence-assisted colonoscopy has recently been introduced into clinical practice as a clinical decision support tool. This review article provides a summary of the current published data and discusses ongoing research and current clinical applications of artificial intelligence-assisted colonoscopy.
Artificial Intelligence ; Colonic Polyps/diagnosis* ; Colonoscopy/methods* ; Colorectal Neoplasms/diagnosis* ; Diagnosis, Computer-Assisted ; Humans

Aged ; Colonic Neoplasms ; diagnosis ; Humans ; Male ; Paraneoplastic Syndromes ; diagnosis ; Pemphigus ; diagnosis