| Fluid Collections |
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| l | Post-
operative hematomas- appearance |
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| depends upon
chronicity. |
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| l | Urine leaks
or urinomas- due to anastomotic |
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| leaks or
ureteric ischemia. Appear well |
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| defined,
anechoic with occasional |
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| hydronephrosis. May use radionuclide |
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| imaging to
confirm nature of collection |
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| l | Lymphoceles-
occur 4 – 8 weeks after |
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| surgery in
15%. May obstruct ureter or |
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| veins. Appear well defined and either |
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| anechoic or
with fine septations. |
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