Medical Selectively raising or lowering the temperature of certain organs

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The discussion centers around the concept of manipulating the temperature of a solitary organ for medical purposes. Controlled temperature changes are recognized as safe and beneficial for specific conditions, suggesting the potential for localized temperature adjustments to treat particular organs without affecting the entire body. This method, while considered extreme, raises questions about its plausibility and possible applications. One established technique mentioned is localized hyperthermia therapy, which is commonly used to treat solid tumors by applying heat directly to the tumor site, enhancing treatment efficacy while minimizing systemic risks.
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I was thinking the other day on whether there are any medical procedures that involve raising or lowering the temperature of a solitary organ. I know controlled temperature changes are mostly safe and useful for certain conditions. It seems that this could be useful for doing it to one particular organ where doing it to the entire body could be otherwise dangerous. This seems to be an extreme measure to take but is it plausible? Is there anything that this could possibly treat?
 
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localized hyperthermia therapy is a common technique for treating solid tumours
 

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