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US pelvis tips


TIPS


In women of reproductive age:



1. Cysts ≤3 cm: Normal physiologic findings; at the discretion of the interpreting physician whether or not to describe them in the imaging report; do not need follow-up.

2. Cysts >3 and ≤5 cm: Should be described in the imaging report with a statement that they are almost certainly benign; do not need follow-up.

3. Cysts >5 and ≤7 cm: Should be described in the imaging report with a statement that they are almost certainly benign; yearly follow-up with US recommended.

4. Cysts >7 cm: Since these may be difficult to assess completely with US, further imaging with magnetic resonance (MR) or surgical evaluation should be considered.


In postmenopausal women:


1. Cysts ≤1 cm: Are clinically inconsequential; at the discretion of the interpreting physician whether or not to describe them in the imaging report; do not need follow-up.

2. Cysts >1 and ≤7 cm: Should be described in the imaging report with statement that they are almost certainly benign; yearly follow-up, at least initially, with US recommended. Some practices may opt to increase the lower size threshold for follow-up from 1 cm to as high as 3 cm. One may opt to continue follow-up annually or to decrease the frequency of follow-up once stability or decrease in size has been confirmed. Cysts in the larger end of this range should still generally be followed on a regular basis.

3. Cysts >7 cm: Since these may be difficult to assess completely with US, further imaging with MR or surgical evaluation should be considered.