Diagnosis of gallbladder villous tubular adenoma with high-grade intraepithelial neoplasia via peroral endoscopic choledochoscopy: a rare case of an elderly patient

Key Points

• Diagnosis of gallbladder villous tubular adenoma revealed high-grade intraepithelial neoplasia, highlighting pathology's complexity.
• An elderly patient underwent peroral endoscopic choledochoscopy, with biopsy confirming the tumor presence.
• Assessment utilized advanced diagnostic techniques, emphasizing the importance of thorough endoscopic evaluation for rare lesions.
• Significance lies in raising awareness for clinicians about rare gallbladder tumors in older adults.