Tumor de Wilms. Reporte de caso

Introduction: Wilms tumor is an embryonic malignant neoplasm, it represents 6% of all pediatric cancers, its origin has been attributed to disorders in renal histogenesis, apparently it develops when metanephric blastemal tissues do not mature properly.Clinical case: It is a case of a 3-years-old male patient with weight loss, constipation and high blood pressure. On physical examination of the abdomen, a mass was palpated at the level of the hypochondrium and left flank; the renal ultrasound shows the left kidney that in its upper pole is replaced by a voluminous solid mass with vascularized calcifications. The abdominal tomography confirms the diagnosis, showing an increase in the volume of the left kidney and that is displaced caudally by an isodense mass that starts from the upper pole. A left nephrectomy plus lymph node dissection was performed and the diagnosis of Wilms tumor was confirmed with the histopathological study. The patient has remained asymptomatic, attending outpatient check-ups once a year.Conclusion: clinical case of a child with an abdominal mass diagnosed and treated in a timely manner in a third level hospital