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RAI Uptake Scan - COLD vs. HOT nodule

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Old 05-24-2005, 08:37 AM   #1
Join Date: Mar 2005
Posts: 33
mispy HB User
Question RAI Uptake Scan - COLD vs. HOT nodule

Hi All
On my recent scan my thryoid absorbed I believe its said 21% after 24 hours which is well in the norm. THe section that was outlined where the nodule is showed "somewhat diminished uptake" It was conluded that the nodule was not fully functioning and should consider removing it.
Now my question is - is this considered cold since it looks like there was uptake but not at the percentage as the rest of the thyroid? Does this also mean that this nodule functions a bit like a thyroid thus producing thyroid hormone?

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Old 05-25-2005, 06:54 AM   #2
Join Date: Mar 2005
Posts: 33
mispy HB User
Question Re: RAI Uptake Scan - COLD vs. HOT nodule

Moving It Up

Any Answers Will Be Appreciated!

Old 05-30-2005, 09:00 AM   #3
Join Date: Mar 2005
Posts: 33
mispy HB User
Re: RAI Uptake Scan - COLD vs. HOT nodule

just bringing this up again - any answers to my question??

Old 05-30-2005, 01:43 PM   #4
Join Date: May 2005
Posts: 368
OraEtLabora HB User
Re: RAI Uptake Scan - COLD vs. HOT nodule

I know only that cold nodules don't take up much iodine - they don't produce much thyroid hormone. Hot nodules take up lots of iodine, and are areas where hormone is produced.

Cold nodules can become cancerous, and it is therefore suggested to keep an eye on them, either by Fine Needle Aspiration, and/or removal. Almost all cancers are from cold nodules, but not all cold nodules are cancerous.

Hot nodules are not usually a cause for concern.

Hope that helps.


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