الفهرس 
INTRODUCTION and Aim of the work.Only 14 pages are availabe for public view
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Abstract
Ovarian neoplasm represents a challenge because of its poor prognosis. Ultrasonography is accepted as the primary imaging modality in the evaluation of ovarian masses. Anumber of gray-scale and Doppler sonographic features have been studied for the ability to allow distinction between benign and malignant ovarian masses. Initial reports suggested a high degree of accuracy for some of these features, such as pulsatility index and resistive index. Further experience revealed that no single parameter has sufficiently high predictive value to allow confident diagnosis or exclusion of malignancy. Subsequently, most investigators have found gray-scale sonography to be as good as or better than Doppler sonography in allowing distinction between benign and malignant ovarian masses. This study included 40 patients with 46 ovarian masses suspected clinically or ultrasonographically. TVS was done for all cases except for virginal cases and cases with large masses which were out of the limited field of view of the vaginal probe. Aller observing all gray¬scale features, color Doppler was superimposed on the gray-scale image to assess the now characteristics and diastolic notch, and to measure the Doppler indices (RI& PI). These findings were compared with histopathological findings in 32 cases, follow up in 5 cases, and laparoscopic findings in 3 cases. The presence of solid nonhyperechoic component is the most discriminating gray-scale sonographic feature.