[Ascariasis in the intrahepatic biliary duct: about a case in pediatrics].

Twenty five percent of the world population is affected by Ascaris lumbricoides. Hepatobiliary ascariasis occurs in areas with high endemicity and great amount of parasitic load, generating intense inflammation to fibrosis. We report a twoyear- old patient that consults about abdominal distension and cough of one month of evolution associated with 72 hours of fever.

[Cerebral hydatid disease: report of six pediatric cases].

Hydatid disease is a parasitic infection whose etiologic agent is Echinococcus granulosus. Human is an accidental intermediate host and the most common site is the liver. The brain involvement is unusual and up to 75% of cases are described in the pediatric population.

Echinococcosis in children: Experience in a tertiary care hospital outside the endemic area.

Echinococcosis is a zoonotic disease that is widely spread across Argentina and worldwide. It is acquired during childhood but it is more common during adulthood. The pediatric population accounts for 10-20% of all cases.

[Ocular involvement in congenital Chagas disease].

Ophthalmic compromise is infrequent in children with congenital Chagas disease. We present 3 patients under 2 months of age, with ocular involvement, all of them referred to the hospital for ophthalmic evaluation of the premature newborn. The ophthalmic finding was bilateral severe vitreitis (posterior uveitis) related to Chagas disease.