Although ultrasonographic diagnosis of gynecologic disorders is used primarily to distinguish between benign and malignant
uterine or ovarian tumors, recent improvement in resolution and advances in Doppler technology empowers ultrasound to diagnose
other intrapelvic disorders. Ultrasonography is also useful in diagnosing such uterine disorders as myoma, adenomyosis,
and endometrial carcinoma, while sonohysterography combined with introduction of sterile saline into the uterine cavity provides
definitive findings of endometrial polyps. Ultrasonography can also show the location of IUDs and cirsoid aneurysms.
Most noteworthy, however, is its usefulness in the differential diagnosis of benign and malignant ovarian tumors. Even malignant,
mucinous, nonmucinous, and metastatic lesions can be differentiated with ultrasound. Ultrasonography can also visualize
such intrapelvic disorders as pyosalpinx, peritonitis, and the presence of foreign bodies, including gauze, and its ability to diagnose
ascites or pseudomyxoma peritonei is also clinically significant.