Resumo

GARCIA-ALFONSO, Carolina; RONDON-CARVAJAL, Julián  e  MILLAN-PEREZ, Sonia Patricia. Onset of primary Sjögren syndrome with mitochondrial polymyositis, axonal neuropathy, and hypokalaemic paralysis: Case report. Rev.Colomb.Reumatol. [online]. 2020, vol.27, suppl.2, pp.158-165.  Epub 10-Set-2021. ISSN 0121-8123.  https://doi.org/10.1016/j.rcreu.2020.05.015.

Sjögren's syndrome is a multisystemic autoimmune disorder. It is classically considered as an exocrine disease, given the high frequency of dry symptoms (keratoconjunctivitis sicca, xerostomia) as a result of poly-glandular infiltration by autoreactive lymphocytes. However, less than 10% of these patients can onset with severe extra-glandular manifestations, resulting in worse long-term outcomes. The case of a pregnant woman is presented, who debuted with acute proximal weakness syndrome related to myositis with mitochondrial pathology and severe hypokalaemia in the context of distal renal tubular acidosis, as an extra-glandular manifestation of primary Sjögren's syndrome. Neurological manifestations of this condition are briefly discussed, including those secondary to metabolic disorders precipitated by autoimmune compromise.

Palavras-chave : Acute weakness; Inclusion body myositis; Axonal neuropathy; Hypokalaemic paralysis; Polymyositis with mitochondrial pathology; Sjögren's syndrome.

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