Synchronous occurrence of appendiceal mucinous cystadenoma, with colon adenocarcinoma and tubulovillous rectal adenoma: Management and review of the literature

Abstract

Appendiceal mucocele (AM) is a rare clinical entity comprising 8% of all appendiceal tumors, and it is seen in 0.2-0.3% of all appendectomy specimens. Apart from sporadic cases, there are no enough published data about the incidence of synchronous appendiceal tumors in patients with colorectal cancer. We describe a very rare case of synchronous occurrence of AM, colon adenocarcinoma, and tubulovillous adenoma of the rectum and review the relevant literature. We conclude that thorough preoperative and perioperative evaluations are mandatory in patients undergoing surgery for colorectal cancer to exclude a synchronous colon or an appendiceal primary tumor. Larger prospective studies are necessary to accurately determine the incidence of synchronous appendiceal tumors and colorectal cancer.

Appendiceal mucinous cystadenoma presenting as abdominal internal hernia: a case report

“…The clinical manifestation is non-special. It may present with abdominal pain, nausea, vomiting, mass of ovary, intestinal obstruction, ureteral compression and so on ( 7 ). Due to the absence of characteristic clinical symptoms and some of which may be manifestations of abdominal internal hernia, it needs comprehensive examinations to diagnose ( 8 ).…”

A case report of a giant appendiceal mucocele and literature review

“…It is a mucinous distention of the appendix, which can be of neoplastic or non-neoplastic origin [ 1 , 2 ]. It is uncommon and has an incidence of 0.2%-0.3% of all appendectomies performed and 8%-10% of all appendiceal tumors [ 3 , 4 ]. It can be asymptomatic and often diagnosed incidentally or may present with appendicitis-like symptoms [ 3 , 5 , 6 ].…”