18 May 2007
Med Sci Monit 2007; 13(1): 116-120 :: ID: 482393
Background: Gynecological examination and transvaginal ultrasound are difficult or impossible in girls and young women who have not started their sexual life. CT is not a method of choice in this age group because of the ionizing radiation and iodine-containing contrast media. MRI is chosen then. Material and Method: Pelvic MRI was performed in 15 patients aged 9-19 years with suspected ovarian mass after they had had unclear gynecological and sonographic examinations. 1.5 T MRI systems were used. SE,T(F)SE and SPIR sequences were applied in T1- and T2-weighted images in three planes. Contrast media were administered in 7 patients. Results: In a group of 3 girls with acute abdominal pain, polycystic ovaries, ovarian hemorrhagic cyst, and fibroma of the ovary were diagnosed. In a group of 11 patients with chronic abdominal pain, dermoid cysts of the ovaries were found in 7 cases, in one bilateral and accompanied by ectopic kidney. In 2 patients, serous cysts were diagnosed. In 2 cases an ovarian origin of the mass was excluded: multilocular cystic lesion in the presacral region and a hydatid mole were revealed. A neoplastic ovarian mass was diagnosed in a girl with increasing circumference of the abdomen. The accuracy of MRI in localizing lesions was 100%. Its accuracy in precisely characterizing lesions was 83.3%.
Conclusions: Magnetic resonance imaging, with its noninvasiveness, high spatial resolution, and tissue specificity, is a method of choice in the diagnosis or exclusion of ovarian pathology in children and adolescents.
Keywords: Child, Adolescent, Magnetic Resonance Imaging - methods, Ovarian Diseases - radiography, Sensitivity and Specificity
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