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 answer
Dr. Peter Nefcy answered
38 years experience Radiology
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.
Answered on Apr 21, 2020
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