Colonic Chicken Skin Mucosa Surrounding Colon Polyps Is an Endoscopic Predictive Marker for Colonic Neoplastic...

Area of Science:

• Gastroenterology
• Endoscopic Diagnostics
• Colorectal Cancer Screening

Background:

• Narrow band imaging enhances colonic polyp diagnosis but isn't standard practice.
• Conventional white light colonoscopy lacks advanced diagnostic tools for polyps.
• Chicken skin mucosa (CSM) surrounding polyps may offer additional diagnostic information.

Purpose of the Study:

• To evaluate the utility of CSM in differentiating neoplastic from non-neoplastic colorectal polyps.
• To determine if CSM provides histological differentiation under conventional white light colonoscopy.
• To assess the association between CSM and polyp histology, including advanced adenomas.

Main Methods:

• Prospective study of 173 patients undergoing endoscopic polypectomy.
• Analysis of clinical data and pathology reports for 313 colorectal polyps.
• Two endoscopists assessed CSM during colonoscopy and polypectomy.

Main Results:

• 91.3% of CSM-positive polyps were neoplastic (specificity 86.15%).
• Positive CSM was significantly associated with neoplastic polyps (OR 3.51) and advanced adenomas (OR 5.64).
• Factors like protruded morphology and pit patterns further correlated with neoplastic and advanced polyps.

Conclusions:

• CSM is a valuable visual marker for identifying neoplastic colorectal polyps during conventional colonoscopy.
• The presence of CSM aids in differentiating advanced adenomas from other polyp types.
• CSM can improve diagnostic accuracy in routine colonoscopies without specialized equipment.