Factors Affecting Colonoscopy Accuracy: A Case Study and Recommendations

Title: Colorectal Cancer Misdiagnosis Highlights Importance of Accurate Colonoscopy Examinations

Subtitle: Early Detection and Regular Check-ups Crucial in Preventing Colorectal Cancer

Changchun, [Date] – A recent case of colorectal cancer misdiagnosis has shed light on the importance of accurate colonoscopy examinations and regular check-ups for early detection. Mr. Wu, a middle-aged man, had been experiencing intermittent bleeding in his stool for over a year. Despite a previous colonoscopy showing the presence of hemorrhoids and no signs of cancer or polyps, further examination revealed a tumor lesion in his sigmoid colon. The subsequent biopsy confirmed a diagnosis of stage II colorectal cancer.

According to Liang Chengchao, vice president of the Health Management Hospital, several factors can affect the accuracy of colonoscopy examinations. These include the implementation of a low-residue diet before the examination, ensuring proper bowel cleansing, examining the entire large intestine, reaching the deepest part of the cecum, and identifying any polyps. Failure to address these factors can lead to inaccurate results and the need for regular follow-up examinations.

Dr. Liang emphasized that colorectal cancer progresses slowly, typically taking 5-10 years for adenomatous polyps to develop into cancer. In Mr. Wu’s case, the absence of cancer lesions in his previous examination may have been due to insufficient bowel cleansing or the tumor being located in easily overlooked areas. Early detection of colorectal cancer significantly improves prognosis, with a five-year survival rate of 95% for stage I, 80% for stage II, and 65% for stage III. However, the survival rate drops to 10-20% in stage IV.

Liang Chengchao urged individuals to undergo regular check-ups, especially those in high-risk groups. Colorectal cancer often presents no symptoms in its early stages. In China, colorectal cancer has been the most common cancer for 15 consecutive years. It is recommended that individuals over the age of 50 undergo a fecal occult blood test every two years. If the test is positive, further colonoscopy is necessary.

Even individuals under the age of 50 should consider early colonoscopy examinations if they are at high risk, such as those who are obese, have a family history of colorectal cancer, smoke, drink alcohol, or have a preference for red meat or high-calorie foods. Regular check-ups and follow-up examinations are crucial in preventing the health hazards of colorectal cancer.

The article is authorized to be reproduced from “Ever Spring Monthly” – “No. 1 in incidence rate in Taiwan! Beware of “5 Factors” Affecting the Accuracy of Colonoscopy Examination.”

[Extended reading]
– “You can tell at a glance! Is blood in the stool hemorrhoids or colon cancer? “Blood Color Distinguishing” taught by specialist doctors.”
– “The “1 seasoning” that must be used for three meals, if the wrong choice or use is wrong, it may be a high risk factor for colorectal cancer.”

Further reading:
– “News/Hot! The Ministry of Health and Welfare announced the number of people seeking medical treatment for heat injuries during the 2-day holiday. Beware of common “4 types” of heat injuries.”
– “2-year-olds are also victims! In Kaohsiung City, 4 doctors were suspended for improper use of “Phenobarbital” and the heaviest fine was 310,000.”Title: No. 1 in Incidence Rate in Taiwan! Beware of “5 Factors” Affecting the Accuracy of Colonoscopy Examination

Subtitle: Early Detection and Regular Check-ups Crucial in Preventing Colorectal Cancer

Date: June 19, 2023

Byline: Changchun Monthly

Changchun Monthly – Mr. Wu, a middle-aged man, recently discovered a tumor lesion in his sigmoid colon after experiencing intermittent bloody stools. This case highlights the importance of high-quality colonoscopy examinations and the factors that can affect their accuracy.

According to Dr. Liang Chengchao, vice president of the Health Management Hospital, several crucial factors can impact the integrity of a colonoscopy examination. These factors include strict adherence to a low-residue diet before the procedure, ensuring thorough bowel cleansing, examining the entire large intestine, reaching the deepest part of the cecum, and detecting any polyps. Failure to address these factors can lead to inaccurate results and may require regular follow-up examinations in the future.

In Mr. Wu’s case, the absence of colorectal cancer lesions in his previous colonoscopy examination could be attributed to insufficient bowel cleansing or the tumor being located in easily overlooked areas of the intestinal tract. Colorectal cancer typically progresses slowly, taking approximately 5-10 years for adenomatous polyps to develop into cancer. Early detection plays a crucial role in achieving a high prognosis and survival rate. The five-year survival rate for stage I colorectal cancer can be as high as 95%, while the rates for stages II and III are approximately 80% and 65%, respectively. However, the survival rate drops significantly to about 10-20% in stage IV.

Liang Chengchao emphasized that colorectal cancer often presents no symptoms, even in its early stages. As colorectal cancer has been the leading cancer in China for 15 consecutive years, it is recommended that individuals over the age of 50 undergo a fecal occult blood test every two years. If the test results are positive, further colonoscopy is necessary. Additionally, individuals under the age of 50 who are at high risk of colorectal cancer, such as those with obesity (BMI>27), a family history of colorectal cancer, or habits like smoking, drinking, or consuming red meat and high-calorie foods, should consider scheduling their first colonoscopy examination in advance. Regular check-ups and follow-up examinations are essential for comprehensive prevention and early detection of colorectal cancer.

The article is authorized to be reproduced from “Ever Spring Monthly” [1].

[1] Source: “Ever Spring Monthly” – “No. 1 in incidence rate in Taiwan! Beware of ‘5 Factors’ Affecting the Accuracy of Colonoscopy Examination” – URL: https://www.ttvc.com.tw/a-31752.html

colon cancer multiple tumors

Address these factors can lead to inaccurate results and the potential for misdiagnosis.

In the case of Mr. Wu, his previous colonoscopy did not detect the tumor lesion in his sigmoid colon, possibly due to insufficient bowel cleansing or the tumor being located in easily overlooked areas. This highlights the importance of conducting comprehensive examinations to minimize the risk of misdiagnosis.

Early detection of colorectal cancer is crucial for improving prognosis and increasing survival rates. According to Dr. Liang, colorectal cancer progresses slowly, usually taking 5-10 years for adenomatous polyps to develop into cancer. The five-year survival rate is 95% for stage I, 80% for stage II, and 65% for stage III. However, the survival rate drops significantly to 10-20% in stage IV.

To prevent misdiagnosis and ensure early detection, regular check-ups are highly recommended, particularly for individuals in high-risk groups. Colorectal cancer often presents no symptoms in its early stages, making regular screenings even more important. In China, colorectal cancer has been the most common cancer for 15 consecutive years.

For individuals over the age of 50, it is recommended to undergo a fecal occult blood test every two years. If the test results are positive, further colonoscopy is necessary to confirm the diagnosis. Even individuals under the age of 50 should consider early colonoscopy examinations if they are at high risk, such as those who are obese, have a family history of colorectal cancer, smoke, drink alcohol, or have a preference for red meat or high-calorie foods.

In conclusion, the case of colorectal cancer misdiagnosis highlights the importance of accurate colonoscopy examinations and regular check-ups for early detection. It is crucial to address factors that can impact the accuracy of colonoscopy examinations to minimize the risk of misdiagnosis. Early detection significantly improves prognosis, and regular screenings are essential for individuals, especially those in high-risk groups, in order to prevent the health hazards of colorectal cancer.