Xanthogranulomatous inflammation is an uncommon form of chronic inflammation. The most commonly affected organs are the kidney and gallbladder. Other organs in which xanthogranulomatous inflammation has been reported are the stomach, anorectal area, bone, urinary bladder, testis, epididymis, vagina, endometrium and fallopian tube. Only a few cases involving the ovary have been reported. In the present patient it has been misdiagnosed as ovarian tumour clinically and radiologically, leading to psychological trauma to the patient.