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Granulomatosis with polyangiitis (GPA) is defined by the presence of small vessel vasculitis that affects the upper respiratory tract, lungs and kidneys. Renal involvement is frequent. The disease varies from asymptomatic to fulminant rapidly progressive glomerulonephritis forms, leading to terminal renal failure in days.

Background:Granulomatosis with polyangiitis (GPA) is a rare systemic vasculitis, affecting mainly the superior airways, lungs and kidneys. Neurological impairment is frequent, described in 22 to 54% of cases, and rarely inaugurates the disease.Objectives:The objective of our work was to evaluate its prevalence and its different aspects.Methods:A retrospective study including 11 files of GPA patients followed over a period of 10 years in The Internal Medecine Department at Tahar Sfar Hospital Mahdia TUNISIA.Results:Neurological manifestations were reported in 5 patients: a pyramidal syndrome was noted in 3 patients with a normal cerebral MRI, a disabled headache was described in one patient with a normal cerebral MRI. Peripheral neuropathy in 2 cases, and the Electroneuromyogram objectified a mononeuropathy affecting the ulnar nerve, peroneal nerve, and musculocutaneous nerve in one patient and a distal sensitivomotor poly neuropathy in one patient. Cranial nerves damage was noted in two cases, one VII (1 case) and one V (1 case).Conclusion:Our study results, show the importance of timely diagnosis of these neurological manifestations, as their evolution will depend on the early GPA treatment.References:[1]doi: 10.1016/j.autrev.2017.07.007Disclosure of Interests:None declared