Diagnosis and Management of Appendiceal Mucinous Tumors

Appendiceal mucinous tumors are rare clinicopathological pathologies that trigger acute appendicitis. Cystadenoma is the most common type of these tumors, which is characterised by luminal dilatation and the production of significant amounts of mucin. A new instance of a large mucocele of the appendix with mucinous cystadenoma is presented. A 61-year-old woman was admitted with acute pain in the bottom right quadrant. Although ultrasonography and computed tomography (CT) indicated that it was a mucocele, she underwent an emergency procedure due to the severity of her suffering. Fortunately, there was no perforation, and the operation ended with an uneventful appendectomy with segmental cecal resection. The specimen was histopathologically determined to be a mucocele with mucinous cystadenoma with negative surgical margins. The patient was discharged on the sixth postoperative day, and a follow-up colonoscopy and abdominal CT were scheduled for six months after surgery. Appendicular mucocele is uncommon and difficult to detect before surgery, and it can be big, increasing the risk of perforation. The most dangerous complication of mucocele perforation is pseudomyxoma peritonei (PP). In most situations, an appendectomy with negative margins is required for optimal treatment. To avoid perforation of the mucocele, utmost care must be exercised during surgery.