The use of sonography in the evaluation of adnexal masses presents an opportunity for detecting various abnormalities. A case study of primary adenocarcinoma of the fallopian tube is presented. This is one of the rarest malignancies of the female genital tract. Its frequency in relationship to all gynecologic cancers is reported to be 1% or less. As a result, it is not surprising that the diagnosis is rarely made preoperatively. Due to the occurrence rate of this malignancy, the sonographer's opportunity to see this pathological process is limited. The following case illustrates an example of adnexal findings in a “routine” sonographic examination for post-menopausal bleeding.
