𝗟𝘆𝗻𝗰𝗵 𝗦𝘆𝗻𝗱𝗿𝗼𝗺𝗲
A new review in the Journal of Medical Genetics examines an important question: 𝗛𝗼𝘄 𝗲𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗶𝘀 𝗿𝗲𝗴𝘂𝗹𝗮𝗿 𝗰𝗼𝗹𝗼𝗻𝗼𝘀𝗰𝗼𝗽𝘆 𝗮𝘁 𝗽𝗿𝗲𝘃𝗲𝗻𝘁𝗶𝗻𝗴 𝗰𝗼𝗹𝗼𝗿𝗲𝗰𝘁𝗮𝗹 𝗰𝗮𝗻𝗰𝗲𝗿 𝗶𝗻 𝗟𝘆𝗻𝗰𝗵 𝘀𝘆𝗻𝗱𝗿𝗼𝗺𝗲?
The answer is more complicated than we once thought.
𝗪𝗵𝗮𝘁 𝗱𝗼𝗲𝘀 𝘁𝗵𝗲 𝗲𝘃𝗶𝗱𝗲𝗻𝗰𝗲 𝘀𝗵𝗼𝘄?
Regular colonoscopy has a 𝗰𝗹𝗲𝗮𝗿 𝗯𝗲𝗻𝗲𝗳𝗶𝘁 𝗶𝗻 𝗿𝗲𝗱𝘂𝗰𝗶𝗻𝗴 𝗰𝗼𝗹𝗼𝗿𝗲𝗰𝘁𝗮𝗹 𝗰𝗮𝗻𝗰𝗲𝗿 𝗱𝗲𝗮𝘁𝗵𝘀. However, it may not completely prevent colorectal cancer from developing.
Lynch syndrome cancers can sometimes develop through an 𝗮𝗰𝗰𝗲𝗹𝗲𝗿𝗮𝘁𝗲𝗱 𝗽𝗮𝘁𝗵𝘄𝗮𝘆 that bypasses the typical polyp → cancer sequence. Some cancers may develop without a conventional, easily detectable precursor polyp.
That means someone can follow recommended surveillance and still develop colorectal cancer.
𝗧𝗵𝗶𝘀 𝗗𝗢𝗘𝗦 𝗡𝗢𝗧 𝗺𝗲𝗮𝗻 𝗰𝗼𝗹𝗼𝗻𝗼𝘀𝗰𝗼𝗽𝘆 𝗶𝘀𝗻’𝘁 𝘄𝗼𝗿𝗸𝗶𝗻𝗴.
Surveillance can help detect cancers 𝗲𝗮𝗿𝗹𝗶𝗲𝗿, when they are more treatable, helping reduce colorectal cancer mortality.
The review highlights ways to improve surveillance, including:
🔹 High-quality colonoscopy
🔹 Gene-specific surveillance intervals
🔹 Chromoendoscopy & AI-assisted detection
🔹 FIT testing between colonoscopies
🔹 Aspirin chemoprevention
🔹 Biomarker-guided strategies
🔹 Continued research
And remember: 𝗟𝘆𝗻𝗰𝗵 𝘀𝘆𝗻𝗱𝗿𝗼𝗺𝗲 𝗶𝘀 𝗻𝗼𝘁 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗳𝗼𝗿 𝗲𝘃𝗲𝗿𝘆𝗼𝗻𝗲. Cancer risks can differ between 𝘔𝘓𝘏1, 𝘔𝘚𝘏2, 𝘔𝘚𝘏6, and 𝘗𝘔𝘚2 carriers.
𝗧𝗛𝗘 𝗧𝗔𝗞𝗘𝗔𝗪𝗔𝗬:
Keep your recommended surveillance appointments. Colonoscopy remains an essential tool for Lynch syndrome, and the evidence strongly supports its ability to 𝗿𝗲𝗱𝘂𝗰𝗲 𝗰𝗼𝗹𝗼𝗿𝗲𝗰𝘁𝗮𝗹 𝗰𝗮𝗻𝗰𝗲𝗿 𝗱𝗲𝗮𝘁𝗵𝘀.
📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗿𝗲𝘃𝗶𝗲𝘄:
https://jmg.bmj.com/content/63/6/337.abstract