Look under secondary hypothyriodism or central hypothyriodism. The tumor is cause the hypothyriodism. The tumor is affectting your hormone levels. I don't know that much , just from what I read. I have a very low normal ft4 (.81, with 0.8 beng the low end of my scale) and a normal to low tsh level. Dr was looking into the samething. Goodluck.
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