Year: 2026
Type: article
Study design: Case Report
Abstract: Appendiceal mucoceles are rare, often asymptomatic lesions caused by mucin accumulation within the appendix and carry a risk of rupture leading to pseudomyxoma peritonei. We report a case of a 60-year-old man undergoing routine screening colonoscopy in whom a smooth, dome-shaped protrusion of the appendiceal orifice was incidentally identified. No biopsy was performed due to concern for underlying appendiceal pathology. Contrast-enhanced CT revealed a 2.2-cm dilated, fluid-filled appendix consistent with a mucocele. The patient underwent elective laparoscopic appendectomy, and histopathology confirmed a low-grade appendiceal mucinous neoplasm confined to the appendix with negative margins. This case highlights the importance of careful endoscopic evaluation of the appendiceal orifice and timely surgical management to prevent complications.
Source: Cureus
Institutions: Lincoln Memorial University, Borland Groover Clinic
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W7220707877