The surgical removal or excision of tissue or an organ; the act or result of cutting out.
From Latin 'exsectio,' derived from 'exsecare.' The -tion suffix creates a noun designating the action and its result, making it the standard term for the surgical procedure.
Medical textbooks distinguish between 'exsection' (the removal) and 'resection' (partial removal of an organ)—subtle terminology that tells you whether the entire structure or just part of it was removed.
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