RESUMO

We report the case of a 3-year-old girl with stage I Wilms' tumor of favorable histology. During the course of chemotherapy 5 months post-diagnosis, an abdominal ultrasonogram revealed hypoechoic areas consistent with hepatic tumor recurrence. A liver biopsy performed to rule out recurrence of the malignancy was suggestive of toxocariasis and the diagnosis was confirmed by serologic testing. Although the patient had few classic signs of visceral larva migrans, her eosinophilia and family social history should have suggested this possibility. This case demonstrates that hepatic toxocariasis should be considered in evaluating hepatic hypoechoic lesions in a child, even when features typical of the disease are absent.

Assuntos

Larva Migrans Visceral/diagnóstico por imagem , Hepatopatias Parasitárias/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/secundário , Tumor de Wilms/diagnóstico por imagem , Tumor de Wilms/secundário , Pré-Escolar , Diagnóstico Diferencial , Feminino , Humanos , Neoplasias Renais/patologia , Larva Migrans Visceral/tratamento farmacológico , Hepatopatias Parasitárias/tratamento farmacológico , Hepatopatias Parasitárias/parasitologia , Tiabendazol/uso terapêutico , Ultrassonografia