Vocal cords palsy in systemic lupus erythematosus patient: diagnostic and therapeutic difficulties.

Vocal cords palsy is a rare complication in the course of systemic lupus erythematosus (SLE). A 38-year-old female patient with a history of SLE presented with chronic voice hoarseness resistant to standard treatment. High levels of antinuclear antibodies including dsDNA, Ro52, SSA, SSB were confirmed, while antiphospholipid antibodies were absent. While other causes of voice hoarseness were excluded, bilateral vocal cords palsy was diagnosed. Moreover, the patient revealed features of obvious Hashimoto thyroiditis with high levels of antithyroid antibodies and also developed a convergent squint as a result of fatigability of oculomotor muscles. Electrophysiology test of peripheral nerves detected myasthenic type nerve-muscle conduction impairment which was suspected as the cause of reported symptoms. Possible reasons for emerging signs and symptoms of neuropsychiatric systemic lupus erythematosus were discussed as well as the presence of vasculitis, neuropathy, significance of thyroiditis and coexistence of myasthenia. All that reasons of similar autoimmune background were also raised in this case report.