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Florence, SC
A 16-year-old female asked:

I had a mri and what does it mean when it say free fluid in the cul-de sac?

1 doctor answer2 doctors weighed in
Dr. Peter Nefcy
Radiology 40 years experience
Free fluid: Free fluid in the cul-de-sac means there is fluid posterior to the uterus in a small space between the uterus and the rectum, and not in a specific structure like a cyst. There is normally a very small amount of fluid present which is not usually seen with MRI. Fluid can accumulate from many causes, and can be seen intermittently due to your menstrual cycle or indicate inflammation in the pelvis.
Dr. Peter Nefcy
Dr. Peter Nefcy commented
Radiology 40 years experience
Provided original answer
Ask your Doctor if the fluid is significant or not, and ask if it indicates that you may have a problem.
Sep 29, 2014
Last updated Apr 21, 2020

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