Abstract

MELAMED, Jacobo; DORNELLES, Fábio  and  ECKERT, Gabriela U.. Cerebral CT scan alterations in children with ocular lesions caused by congenital toxoplasmosis. J. Pediatr. (Rio J.) [online]. 2001, vol.77, n.6, pp. 475-480. ISSN 0021-7557.  http://dx.doi.org/10.1590/S0021-75572001000600010.

OBJECTIVE: to evaluate the frequency and the types of cerebral CT scan alterations in patients with ocular lesions caused by congenital toxoplasmosis. METHODS: the patients should fit one of the following criteria: reagent IgM serology for toxoplasmosis at birth and mother with positive serology for toxoplasmosis; age less than ten years, with bilateral funduscopic lesions compatible with toxoplasmic retinochoroiditis; or reagent IgG serology for toxoplasmosis and mother with positive serology for toxoplasmosis. All patients were submitted to noncontrast cerebral CT scan. RESULTS: twenty-two patients participated in this study (44 eyes). Thirteen eyes presented macular lesions (29.5%), eight had peripheral lesions (18.2%) and 22 eyes had concomitant macular and peripheral lesions (50%). Seventeen patients presented radiological alterations (77.3%). Among these, sixteen patients (94.1%) presented brain calcifications, two patients (11.7%) presented ventricular dilation, two patients (11.7%) had hydrocephalus, one had hydranencephaly (5.9%), one presented porencephalic cyst (cerebral hemiatrophy) (5.9%), one had arachnoid cyst (5.9%) and one had mild dilation of ventricles and subarachnoid cistern (5.9%). CONCLUSIONS: Patients diagnosed with congenital toxoplasmosis and ocular lesions should be investigated for concomitant neuroradiologic alterations.

Keywords : toxoplasma gondii; calcifications; uveitis.