TG and goiter: Age at diagnosis, gender, symptoms, height and weight measurements, Tanner pubertal stage, degree of goiter, laboratory markers including serum free thyroxine (fT4), free triiodothyronine (fT3), thyroid-stimulating hormone (TSH), anti-Tg, and thyroglobulin (Tg) levels, thyroid ultrasonography findings, treatments given, and treatment and follow-up periods were recorded.