• Panagiotis Zis, Ptolemaios Georgios Sarrigiannis, Dasappaiah Ganesh Rao, David Surendran Sanders, and Marios Hadjivassiliou.
• Academic Department of Neurosciences, Sheffield Teaching Hospitals NHS Foundation Trust , Sheffield , UK.
• Postgrad Med. 2019 Sep 1; 131 (7): 496-500.

AbstractObjectives: The commonest types of peripheral neuropathy in the context of Coeliac Disease (CD) and gluten sensitivity (GS) are length-dependent symmetrical sensorimotor neuropathies and sensory ganglionopathies. In patients with such neuropathy, (gluten neuropathy), peripheral neuropathic pain is prevalent suggesting involvement of small fibers. The purpose of this report was to describe the clinical characteristics of patients with CD or GS and pure small fiber neuropathy (SFN). Methods: We reviewed the records of all patients that had been referred to the Gluten-Related Neurological Disorders clinic who had clinical and neurophysiological evidence of SFN. All patients had serological evidence of gluten sensitivity (GS) prior to commencing GFD. All patients were offered a duodenum biopsy. Patients with comorbidities that could cause SFN were excluded. Results: We identified 13 patients (9 males) with SFN and gluten sensitivity. Of 11 patients who underwent duodenal biopsy 10 had evidence of enteropathy (CD). Mean age at onset of pain was 53.5 ± 11.4 years (range 34-72) and mean age of CD/GS diagnosis was 50.8 ± 10.4 years (range 34-68). In 8 patients (61.5%) pain was the presenting feature. Neurophysiological assessment suggested a length-dependent small fiber neuropathy in 11 patients, whereas in 2, a non-length dependent pattern was identifying suggesting that the predominant pathology lies in the dorsal root ganglia. Conclusion: SFN can be a presenting feature of CD and GS and, therefore, screening for CD and GS should be included in the diagnostic workup of patients with idiopathic SFN.

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