FGFR3 and Sensory neuropathy: In a multicenter prospective study, 15% of patients with a sensory neuropathy had FGFR3 antibodies; 2/3 of patients fulfilled the criteria for sensory neuronopathy, 17% for small-fiber neuropathy and 19% for other sensory neuropathies, the majority (89%) being non-length-dependent phenotypes (144).