Three dimesional ultrasonography in the diagnosis of hepatic focal lesions - focal lesions of liver frequently present diagnostic dilemma especially in patients with different hepatocellular disease . Three dimesional ultrasonography has been recently introduced and is being evaluated in the diagnosis of HFL. - 24 patients with different HFL were subjected to full clinical assessment , routine labs and abdominal ultrasound by both conventional and 3D techniques - conclusions : 3D ultrasound showed the following ,it represents a further development of non –invasive diagnostic sonographic techniques, it improves understanding the morphologic imaging methods , it has the ability to obtain ultrasound sections which are impossible to see on routine scan, it has the ability to perform accurate volume measurements , it clarifies pictures ofvascular and blood flow dynamics allowing a better assessment of vasculature and vascular invasion , by using the 3D power Doppler it can be helpful in differential diagnosis of hepatic focal lesions as well as evaluation of tumoural vascularity and the 3D color histogram was applied to measure the colour percentage and flow amplitude in the volume of hepatic focal lesions.