What is the meaning of no adnexal masses or pelvic fluid?

Is good: A common radiologist phrase for no signs of cancer in the pelvis.

No worrisome finding: Typically a pelvic ultrasound is performed to evaluate the uterus and the adnexa/ovaries. The phase in the question refers to absence of obvious masses in the ovaries/adnexas, ie no obvious tumor. A reference of pelvic fluid is also useful to know if there is any sort of potential inflammation and absence of fluid is a good sign although a small amount is typically phsiologi.