Eosinophilic gastroduodenitis secondary to toxocariasis: a zoonosis simulating gastric lymphoma in children

• Autores: Cuadros Mendoza, Carlos Augusto, Santander Díaz, Yennifer Fernanda, Garcés Camacho, Johon Francisco, Parra Izquierdo, Viviana, Vargas Soler, José Antonio, Paz Amador, Kelly Johana, Pinilla Orejarena, Adriana Patricia, Castillo Rincón, Adriana Lucía, Toscano Rodríguez, Silvia María, Pérez Montiel, Camilo Andrés, Navarro Mejía, Johana Andrea
• Formato: artículo
• Fecha de Publicación: 2025
• Institución: Sociedad de Gastroenterología del Perú
• Repositorio: Revista de Gastroenterología del Perú
• Lenguaje: español
• OAI Identifier: oai:ojs.revistagastroperu.com:article/1980
• Enlace del recurso: https://revistagastroperu.com/index.php/rgp/article/view/1980
• Nivel de acceso: acceso abierto
• Materia: Toxocariasis; Eosinofilia; Pediatría; Enfermedades Parasitarias; Eosinophilia; Pediatrics; Parasitic Diseases

We describe the case of a pediatric patient with eosinophilic gastroduodenitis secondary to visceral toxocariasis, presenting with clinical, endoscopic, and histological features suggestive of gastric lymphoma. The patient, from a rural area, exhibited severe gastrointestinal symptoms, persistent hypereosinophilia, deep ulcerative lesions in the stomach and duodenum, as well as systemic involvement. After an extensive immunological, hematological, and infectious disease evaluation, the diagnosis was confirmed by positive serology for Toxocara canis. The patient showed favorable clinical evolution with antiparasitic therapy, immunomodulation, and intensive nutritional support. This case highlights the importance of considering infectious etiologies in the differential diagnosis of eosinophilic gastroduodenal disorders, particularly in pediatric patients with systemic involvement and a presentation mimicking malignant disease.