<prompt> The most common complication of an ovarian tumor is:TorsionHemorrhageInfectionHyaline change  <response>: Ans. is a, i.e. TorsionRef: Shaw 15thed, p382Complications of Ovarian tumor TRIP:T Torsion Most common complication Seen in 12 cases Most common in benign tumors Most common tumor to undergo torsion is dermoid cyst. - Ref: Jeffcoate 7thed, p548R Rupture Which can be traumatic or spontaneous.I Infection Rare complication Seen following acute salpingitis or during puerperium as a part of an ascending genital tract infection.P Pseudomyxoma peritonei Peritoneal cavity is filled with coagulated mucinous material.In ovarian Tumors Most common in mucinous cystadenoma and mucinous carcinoma.Also seen in: Mucocele of appendix. Carcinoma of large intestine. Appendix cancer overall is the MC cause of pseudomyxoma peritonei. 