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A 28-year-old female asked:

if a 1cm complex kidney cyst has been stable in size for 4 months, what are the chances it is cancer and is it possible for it to spread at this size?

1 doctor answer1 doctor weighed in
Dr. Stuart Winkler
Nephrology and Dialysis 48 years experience
Renal cyst: The fact that it is small and stable after 4 months is a good sign. However another renal ultrasound should be done in 6 months to look for growth or change in structure. There is an increased risk of malignancy with a complex cyst and it should be watched closely

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A 36-year-old member asked:

What are the signs that complex kidney cyst is cancer?

2 doctor answers4 doctors weighed in
Dr. S. Smiley Thakur
Nephrology and Dialysis 31 years experience
Multiple features: Complex cysts, vs. Simple cysts, share common walls with other cysts, have solid components in the walls, or calcifications. The radiologist will opine if features look suspicious and either recommend a repeat ultrasound in 6 months, or a ct to further clarify.

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Last updated Sep 5, 2014

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