Patient Question: Hi Dr. Xu, my father’s appendiceal cystic adenoma was already broken during the operation. I hope you will take the time to reply. Thank you. Reply: In the section of appendiceal tumors in the more authoritative “Huang Jiajiayi Surgery”, it is mentioned that appendiceal mucous cysts are divided into pseudocysts and true cysts, and true appendiceal mucous cysts are currently renamed as low-grade mucous tumors of the appendix (for the latest pathology of appendiceal tumors, please refer to: http://bdhtyy721.blog.sohu.com /The true appendiceal mucinous cysts are now renamed as low-grade mucinous tumors of the appendix (for the latest pathology of appendiceal tumors see: ). This true cyst can have extensive peritoneal implantation even if it does not rupture. Therefore, I personally believe that recurrence and implantation of appendiceal mucinous cystadenoma is sure to occur. With this in mind, I propose to pay attention to the unexpected intraoperative finding of appendiceal mucinous cysts, and for such unexpectedly found appendiceal mucinous cysts, I personally propose that all should be reoperated: including appendectomy or right hemicolectomy, total greater omental resection, double adnexal resection (in women) + early intraoperative and postoperative continuous peritoneal thermoperfusion chemotherapy. This will allow early control of peritoneal pseudomucinous tumor and hopefully improve the surgical outcome of peritoneal pseudomucinous tumor, for more information see: http://bdhtyy721.blog.sohu.com/233174971.html航天中心医院普外科许洪斌患者提问: My father usually did not feel anything and suddenly went to the hospital with pain and thought it was acute appendicitis who knew it was The doctor said the tumor had already broken by then. So is my dad in early or late stage as you tweeted? He is otherwise in good health. Is this a good result? Reply from Xu Hongbin, General Surgery Department, Aero Center Hospital: Most of these accidental findings are very early, that is, limited to the appendix and not elsewhere. In a patient like this, if you operate again within three months after the discovery of this cyst, I think it will eradicate this disease. However, there are few records of such early stage and so far there are only 5 cases that have been operated as per my request and have 1-3 years of follow up with no recurrence.