<prompt> Wilms tumour commonly presents asPain in the abdomenAbdominal massFeverHematuria  <response>: Abdominal mass: Ref: 574-G 592-Ghai 7thWILMS TUMOR or nephroblastoma is the most common malignant tumour of the kidney 80 of children under the 5 years mean age 3years Congenital anomalies particularly -- Aniridia- Hemihypertrophy- Beckweith - Wiedmann syndrome- Mental retardation Deletion in the region of 11 p 13Clinical Presentation Most of the patients presents with a asymptomatic abdominal mass Hematuria 10- 25 Hypertension about 25 Other frequent symptoms - abdominal pain 30 fever 20 anorexia and vomiting Ultrasound scanning is the most important investigation 