Appendicular Mucocele Due to Low-Grade Mucinous Neoplasia: Incidental Diagnosis and Laparoscopic Treatment

• DOI: https://doi.org/10.22533/at.ed.15953325201111

• Palavras-chave: appendicular mucocele; low-grade appendiceal mucinous neoplasm; laparoscopic appendectomy; peritoneal pseudomyxoma; incidental diagnosis.

• Keywords: appendicular mucocele; low-grade appendiceal mucinous neoplasm; laparoscopic appendectomy; peritoneal pseudomyxoma; incidental diagnosis.

• Abstract:

  Appendiceal mucocele is a rare condition defined by dilation of the appendicular lumen due to mucus accumulation, often associated with neoplastic lesions. We report the case of a 66-year-old previously healthy patient with an incidental finding of an appendicular lesion during routine gynecological examination. The patient underwent laparoscopic appendectomy without complications, and histopathological examination confirmed low-grade appendiceal mucinous neoplasm (LAMN), with clear margins and no signs of peritoneal dissemination. This case reinforces the importance of early diagnosis and careful surgical management to avoid serious complications, such as peritoneal pseudomyxoma, in addition to highlighting the association with synchronous colorectal neoplasms.