Diagnostics confirmed severe hypothyroidism [total thyroxine (TT4) < 0.5 μg/dL, thyroid-stimulating hormone (TSH) 5.54 ng/dL], elevated thyroglobulin autoantibodies (TgAA 131%), hyperglobulinemia, hypoalbuminemia, and mild ionized hypercalcemia. Here, TG is linked to hypercalcemia disease.