Spontaneous involution of optic pathway lesions in neurofibromatosis type 1: serial contrast MR evaluation.

Purpose: To evaluate with contrast MR the evolution in size, signal, and contrast enhancement of optic pathway lesions in four patients with neurofibromatosis type 1.

Methods: The four reported patients are children with ages ranging from 21 months to 13 years affected by neurofibromatosis type 1 and optic pathway lesions. No treatment of the optic pathway lesions was carried out in these patients.

[Multiple hepatic abscesses: a pediatric case report].

The Authors describe the case of an immunologically healthy 14 year old boy presenting a hepatic infection with multiple abscesses. This case is of particular interest because of its rarity in Pediatrics. Probable etiologies, pathogenic mechanisms and treatments are discussed.

Early diagnosis of optic glioma in children with neurofibromatosis type 1.

Twenty-five asymptomatic patients with neurofibromatosis type 1 (NF 1), aged 6-21 years, underwent the following examinations: intracranial magnetic resonance testing (MRI), visual acuity testing, ophthalmoscopy, and visual field and pattern reversal visual evoked potentials (VEPs). MRI showed enlargement of one or both optic nerves in six children, with bilateral involvement in three. VEPs were normal in all these patients; two of them had abnormalities on other visual examinations, although there were no subjective visual disturbances.

[Screening of urologic pathology in newborns with prenatal and postnatal echography].

We compared the results, by prenatal ultrasonography, effected on 2592 foetus at the 15th-25th-35th weeks of gestation with the ones, made by postnatal ultrasonography, effected the 5th day of life on 2539 infants born from pregnancies previously monitored. We considered the obstructive and not obstructive malformations. The prenatal ultrasonography put in evidence 19 cases of urological pathology, which is 0.