Have a ovarian cyst 8cm, on CT scan mesenteric and retroperitoneal lymph nodes noted? Does that mean enlarge? . I'm confused. It didn't say enlarged.

Not necessarily . 8cm cyst ( depending on what it looks like on the scan) does not have to be cancer in someone your age. Lymph nodes are often visible on scans and as long as they are not enlarged ( greater then 1cm) they are just a normal finding. The cyst should be followed up on in a short period of time (6weeks) with a pelvic ultrasound, but if there was anything questionable about the lymph nodes then ct.
Monitoring Centers. Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.

Related Questions

Why would a radiologist put on CT report, mulpile retroperitoneal and mesenteric lymph node noted. But did say they were enlarged. 8cm ovarian cyst?

It depends. Everyone has mesenteric and retroperitoneal lymph nodes. To "note" them on a ct scan does not necessarily mean they are enlarged. Even normal small lymph nodes are often visible on ct. In general, a radiologist will give specific measurements if there are abnormally enlarged lymph nodes or he/she will use the term "adenopathy." nevertheless, without seeing the images it is not entirely clear. Read more...
Worth noting. If the radiologist remarks on the lymph nodes, they be significant depending on the clinical situation; such as bowel disease or infection. An 8 cm ovarian cyst is abnormal and requires follow up ultrasound after two menstrual cycles. Read more...