The radiological investigation of hepatic tumors in childhood.

In hepatic tumors seen in children, treatment and prognosis differ from tumor to tumor and thus accurate determination of their extent and characteristics is important. Evaluation by gray scale ultrasonography, radionuclide imaging and angiography has produced definable characteristics for the various tumor types and often allows distinction from other intrahepatic processes. In addition, chemotherapeutic treatment of initially unresectable malignant hepatic tumors can be followed by nuclear imaging, ultrasound and angiography to determine therapeutic response.