Pearls and Pitfalls in Diagnosis of Ovarian Torsion
Top Cited Papers
- 1 September 2008
- journal article
- Published by Radiological Society of North America (RSNA) in RadioGraphics
- Vol. 28 (5), 1355-1368
- https://doi.org/10.1148/rg.285075130
Abstract
Ovarian torsion is defined as partial or complete rotation of the ovarian vascular pedicle and causes obstruction to venous outflow and arterial inflow. Ovarian torsion is usually associated with a cyst or tumor, which is typically benign; the most common is mature cystic teratoma. Ultrasonography (US) is the primary imaging modality for evaluation of ovarian torsion. US features of ovarian torsion include a unilateral enlarged ovary, uniform peripheral cystic structures, a coexistent mass within the affected ovary, free pelvic fluid, lack of arterial or venous flow, and a twisted vascular pedicle. The presence of flow at color Doppler imaging does not allow exclusion of torsion but instead suggests that the ovary may be viable, especially if flow is present centrally. Absence of flow in the twisted vascular pedicle may indicate that the ovary is not viable. The role of computed tomography (CT) has expanded, and it is increasingly used in evaluation of abdominal pain. Common CT features of ovarian torsion include an enlarged ovary, uterine deviation to the twisted side, smooth wall thickening of the twisted adnexal cystic mass, fallopian tube thickening, peripheral cystic structures, and ascites. Understanding the imaging appearance of ovarian torsion will lead to conservative, ovary-sparing treatment.Keywords
This publication has 41 references indexed in Scilit:
- Adnexal TorsionClinical Obstetrics and Gynecology, 2006
- Diagnostic value of transvaginal color Doppler flow in ovarian torsionEuropean Journal of Obstetrics & Gynecology and Reproductive Biology, 1996
- Case Report. Intravascular Gas within an Ovarian Tumor: A CT Sign of Ovarian TorsionJournal of Computer Assisted Tomography, 1996
- Adnexal torison: the contribution of color Doppler sonography to diagnosis and post-operative follow-upEuropean Journal of Obstetrics & Gynecology and Reproductive Biology, 1995
- Ovarian torsion in prepubertal and pubertal girls: sonographic findings.American Journal of Roentgenology, 1994
- Torsion of uterine adnexa in neonates and children: A report of 20 casesJournal of Pediatric Surgery, 1991
- Hemorrhagic ovarian cyst detection by transvaginal sonography: The great imitatorGynecological Endocrinology, 1991
- Change in ovarian arterial compliance during the human menstrual cycle assessed by Doppler ultrasoundBJOG: An International Journal of Obstetrics and Gynaecology, 1990
- Acute torsion of normal uterine adnexa in children: sonographic demonstrationAmerican Journal of Roentgenology, 1982
- MORPHOLOGICAL AND FUNCTIONAL RELATIONS OF GRAAFIAN FOLLICLE GROWTH TO OVULATION IN WOMEN USING ULTRASONIC, LAPAROSCOPIC AND BIOCHEMICAL MEASUREMENTSBJOG: An International Journal of Obstetrics and Gynaecology, 1981