occur as an incidental surgical finding. Appendiceal mucinous neoplasms represent an exceptionally rare form of pathology. Mucinous cystadenocarcinoma,

causes a mucocele by the neoplasm occluding the narrow lumen which allows the mucin to build up and distend the appendix.

The treatment of choice is often surgical resection combined with adjuvant chemotherapy. Here we report a case of 55 years old lady who presented

with a swelling in the right iliac fossa of a short duration. Upon evaluation she was diagnosed to have an appendiceal mucocele which was identified

as mucinious cystadenocarcinoma on histopathology