Study on the Relation between Colorectal Cancer and Gall Bladder Disease

Area of Science:

• Gastroenterology
• Oncology
• Epidemiology

Background:

• Colorectal cancer (CRC) affects the large intestine, including the sigmoid colon and rectum.
• Understanding CRC incidence and risk factors is crucial for public health.
• Gallbladder disease is a common condition with potential systemic implications.

Purpose of the Study:

• To investigate the association between colorectal cancer incidence and prior gallbladder disease or post-cholecystectomy status.
• To examine the relationship between gallbladder disease, smoking, and CRC location.
• To identify common colon regions affected by CRC in patients with and without gallbladder disease.

Main Methods:

• A cohort of 256 patients with relevant symptoms underwent colonoscopy, with 30 diagnosed with CRC.
• Detailed patient histories were collected using a modified questionnaire, alongside comprehensive investigations including imaging (CT, MRI) and biopsy.
• Patients were categorized into Gall Bladder Disease (GBD) and Non Gall Bladder Disease (NGBD) groups for comparative analysis using proportions and Fisher's-exact tests.

Main Results:

• A statistically significant association was found between colorectal cancer and previous gallbladder disease (p=0.016).
• Right-sided CRC was more prevalent in the GBD group, while left-sided CRC was more common in the NGBD group.
• Smoking was noted in 50% of GBD patients with CRC, though this did not reach statistical significance (p=0.091).

Conclusions:

• Cholelithiasis (gallstones) presents a statistically significant risk factor for developing colorectal cancer.
• Cholecystectomy (gallbladder removal) did not appear to confer an increased risk of colorectal cancer in this study.
• Further research is warranted to elucidate the mechanisms linking gallbladder disease and colorectal cancer, and the role of smoking.