Abdominal Ultrasound is comprehensively reviewed by guest editor Wui K. Chong and authors. Articles will include: Ultrasound of the Liver and Spleen; Ultrasound of the Gallbladder and Biliary Tree; Doppler US of the Liver, Portal Hypertension, and TIPS; Contrast evaluation of liver masses; Elastography of the Abdomen; The Role of Sonography in Liver Transplantation; Renal Ultrasound; Ultrasound of the Renal Transplant; Sonography of the Retroperitoneum; Ultrasound Assessment of the Aorta and Mesenteric Arteries; Sonography of the Bowel; Ultrasound of the Abdominal Wall; Ultrasound-Guided Intervention in the Abdomen and Pelvis, and more!