Dermoid cyst (Mature cystic teratoma), the most common type of primordial germ cell ovarian tumors is usually benign and asymptomatic. It can be malignant for only 5 per cent. Giant ones can be symptomatic. Torsion is the most common complication. Ovarian (adnexal) torsion is defined that is twisting of ovarian(adnexal) mass around itself and compression of its vascular pedicle. Unless its diagnosed and treated quickly, ovarian torsion can give a way to haemorrhagic infarct and necrosis of that ovary. Torsion occurs and progesses in a few hours. The most important entities are early diagnosis and early treatment. Clinical signs are similar in pregnant and non-pregnant cases. Approximately 20 per cent can give symptoms during pregnancy. It can occur in any trimester, but especially in first trimester. The patient complains about severe lower abdominal and pelvic pain, nausea and vomiting. Ultrasound and Doppler scan are first choices to make a diagnosis. For an exact assessment and treatment, it is warranted to detorsion of that adnex-ovary, visualize and observe its vitality during the operation. Here we are presenting a case that is pregnant in ten weeks gestation with bilateral dermoid cyst and unilateral ovarian torsion.
Dermoid cyst, ovarian torsion during pregnancy, transvaginal ultrasound.