TF and diabetes mellitus: These neurologically asymptomatic patients were diagnosed following the onset of diabetes and/or anemia [7, 17, 22, 28, 43, 47], during the diagnostic workup of unexplained hyperferritinemia with low transferrin saturation [8, 17, 20, 23, 39, 43, 46, 47], or by family counselling [16, 21, 24, 25, 27, 31, 37, 42].