Background: It is very controversial whether appendectomy should be performed as a routine part of the staging procedure for mucinous borderline ovarian tumors (mBOTs) or not. So this study has been conducted to determine the frequency of appendiceal involvement in patients of mBOTs, morbidity associated with surgery and, to evaluate recurrence free survival after surgery.Methods:  This retrospective cohort study was conducted at cancer centre from Jan 2008 to Dec 2022 (15 years). The hospital database was searched and all women who have been operated for mBOTs were included in the study. Descriptive analysis was performed for study variables. Survival curve was calculated according to the Kaplan–Meier method. Results: Ninety cases were identified from Cancer registry whose final diagnosis was mBOTs. Fifty one patients were finally selected for the study. Of 51 patients, appendectomy was not performed in eight patients and the reason was not mentioned in the record. Appendix was macroscopically abnormal in only 2 patients. None of the patients were diagnosed with mucinous borderline tumor of the appendix in our study. Appendectomy itself was not associated with any complications. Only one patient  with mBOT had recurrence after 4 months of surgery which was surgically treated and no patient died during median follow up of 36 months. Conclusion: If appendix is grossly normal looking then appendectomy should not be performed as a routine procedure in surgery of mBOTs. mBOT’s have good recurrence free and overall survival outcomes post surgery.

Maria Habib has done FCPS in Obstetrics and Gynaecology from Pakistan and is also a MRCOG. She has done certification in medical education from SEDA, UK. Currently, she is doing fellowship in Gynae-oncology from Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH&RC), Lahore, Pakistan which is one of the leading cancer centers in south Asia and is known for its high standards of care and charitable mission. She has published more than 25 papers in well reputed journals and has been serving as a reviewer in various reputable local and international journals.