[Surfactant protein C dysfunction in pediatric patients: Clinical Case].

Unlabelled: Pulmonary surfactant dysfunction disorders are caused by genetic defects that alter pulmonary surfactant metabolism. They are rare disorders and cause significant morbidity and mortality in the neonatal and pediatric populations.

Objective: To describe the clinical, histopathological, and ultrastructural findings of the lamellar body that suggest surfactant protein C (SP-C) dysfunction, where confirmatory genetic studies are not available.

[Pulmonary actinomycosis in children: report of two Peruvian cases].

Introduction: Actinomycosis is a rare infectious disease caused by Gram-positive bacteria. The most common species is Actinomyces israelii. Among its forms of presentation, the thoracic is the least frequent.