We evaluated whether perfusion brain abnormalities by single-photon emission computed tomography (SPECT) imaging improves diagnostic and prognostic assessment in Sydenham chorea. Twenty-three children with acute autoimmune chorea underwent technetium-99m hexamethylpropyleneamine oxime brain SPECT imaging. In 16 children, SPECT was repeated during the follow-up. A pattern of basal ganglia hyperperfusion was observed in 20 (87%) patients. In 4 of 10 patients with generalized chorea, perfusion was comparable in right and left striatum and right and left thalamus. In 13 patients with hemi-chorea and in 3 with generalized chorea, unilateral hyperperfusion was detected. Three patients with generalized chorea had normal perfusion. Tracer uptake of basal ganglia of the patients at the acute phase was higher than at the follow-up ( P < .001). SPECT seems a useful noninvasive tool in pediatric patients with Sydenham chorea to support the clinicians during the acute phase of disease and to monitor the course of autoimmune chorea.
Polyarteritis nodosa (PAN) is a necrotizing vasculitis of small- and medium-sized arteries with multiorgan involvement, rarely reported in childhood. Despite aggressive treatment with the combination of corticosteroids and cytotoxic agents, the overall prognosis is poor in most patients. We report on two siblings, now 15- and 14-year-old, affected with childhood onset PAN, refractory to multiple therapies, who showed rapid clinical and laboratory improvement when mycophenolate mofetil was introduced. The relationship between the administration of this immunosuppressant agent and the reduced disease activity is confirmed by the sustained absence of disease flares over 4 years of treatment.
The last author's given and family name was published incorrectly in the original publication of the article. It should read Maria Alessio. The complete author group is listed as
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