Presentation
Vague long-standing abdominal pain
Patient Data
Axial non-contrast CT images of pelvis show cystic dilatation of appendix with focal wall calcifications. No wall thickening or periappendiceal inflammatory changes are seen.
No significant pelvic lymphadenopathy.
These features are consistent with a mucocele of appendix.
Case Discussion
CT pelvis showed cystic dilatation of the appendix with focal mural calcifications representing an uncomplicated appendiceal mucocele.
Mucocele of appendix can be benign or malignant, ranging from simple mucocele to mucinous cystadenoma and mucinous cystadenocarcinoma.
Mucocele of appendix can undergo various complications like superimposed infection (presenting as acute appendicitis), rupture, torsion and hemorrhage. Rupture of a malignant appendiceal mucocele can lead to pseudomyxoma peritonii.
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