Large Intestine: Appendiceal Mucocele

Definition

• Simple Mucocele Filled with Mucin without Dysplasia
• Other Terms:
  • Non-Neoplastic Mucinous Lesion
  • Retention Cyst

Considerations

• From Chronic Luminal Obstruction Causes Cystic Expansion of the Distal Appendix
• Can Cause Pseudomyxoma Peritonei
• Concern that Low-Grade Appendiceal Neoplasms May Present Similarly

Treatment

• Primary Treatment: Appendectomy (Laparoscopic or Open)
• Consider Right Hemicolectomy if Malignant Cause is Suspected