RESUMO
SUMMARY Symptoms and signs of the hypothyroidism vary in relation to the magnitude and acuteness of the thyroid hormone deficiency. The usual clinical features are constipation, fatigue, cold intolerance and weight gain. Rarely it can present with neurologic problems like reversible cerebellar ataxia, dementia, peripheral neuropathy, psychosis and coma. Hypothyroidism should be suspected in all cases of ataxia, as it is easily treatable. A 40 year-old male presented with the history facial puffiness, hoarseness of voice and gait-ataxia. Investigations revealed frank primary hypothyroidism. Anti-TPO antibody was positive. Thyroxine was started and patient improved completely within eight weeks. Hypothyroidism can present with ataxia as presenting feature. Hypothyroidism should be considered in all cases of cerebellar ataxia as it is a reversible cause of ataxia.
Assuntos
Humanos , Masculino , Adulto , Ataxia Cerebelar/etiologia , Hipotireoidismo/complicações , Imageamento por Ressonância Magnética , Ataxia Cerebelar/fisiopatologia , Ataxia Cerebelar/diagnóstico por imagem , Marcha Atáxica/etiologia , Marcha Atáxica/fisiopatologia , Hipotireoidismo/fisiopatologiaRESUMO
A 46-year old man presented with progressive cerebellar ataxia for 5 years. Physical examination revealed palatal and tongue myoclonus, cerebellar gait, limb ataxia and spasticity of the lower extremities. The imaging studies including CT-scan and MRI of the brain revealed progressive pancerebellar atrophy and bilateral hypertrophic degeneration of inferior olives. The clinical course was slowly progressive. Various medications included anticonvulsants, benzodiazepines and antispasticity failed to abolish the abnormal palatal movement and ataxic syndrome. The syndrome of progressive ataxia and palatal myoclonus is a rare and unique neurodegenerative syndrome. The pathogenesis and treatment are still unknown.