AbstractThis is a case of an ovarian actinomycosis diag-nosed as a complex ovarian cyst by ultrasound in asymptom-atic patient. The ovarian tumour markers were within normal. The tube and ovary were removed laparoscopically. She re-ceived 2 weeks of daily IV 1 g of ceftriaxone, followed by 6 months of oral amoxicillin. CT scan did not show evidence
of actinomycosis elsewhere. She did not give any history of intrauterine contraceptive use.