Endometriosis of the Appendix: When Appendicitis Is Less Than Straightforward

Area of Science:

• Gastroenterology
• Gynecology
• Pathology

Background:

• Appendicitis is commonly caused by inflammation, but other pathologies can lead to appendiceal masses.
• Endometriosis of the appendix is a rare condition, occurring in less than 1% of female appendectomy cases.
• Distinguishing appendicitis symptoms from other appendiceal pathologies, such as malignancy, is challenging.

Approach:

• A case report of a 49-year-old female with ulcerative colitis presenting with appendicitis is detailed.
• A laparoscopic appendectomy was performed, revealing early acute appendicitis with appendiceal endometriosis.
• A literature review was conducted using PubMed with keywords 'appendix,' 'appendicitis,' and 'endometrioma' to explore existing research.

Key Points:

• Appendiceal masses can have various etiologies, including inflammatory phlegmon, malignancy, and endometriosis.
• Endometriosis of the appendix, while rare, should be considered in the differential diagnosis of appendicitis, particularly in women.
• The study emphasizes the need for further research to identify risk factors and improve screening for appendiceal masses.

Conclusions:

• This case report underscores the importance of considering rare causes of appendicitis, such as endometriosis.
• Improved understanding of appendiceal pathologies can enhance diagnostic accuracy and patient management.
• Further research is required to develop better screening methods for appendiceal masses and associated conditions.