Fig. 7
Upper tract UC in a 69-year-old female patient. a Longitudinal greyscale ultrasound image shows a rounded soft tissue mass (arrow) in a dilated upper calyx in the left kidney. b Longitudinal greyscale with color Doppler ultrasound image shows the mass (arrow) is hypovascular. c Axial post contrast corticomedullary phase CT image shows the mass (arrow) is homogeneous and hypovascular relative to the renal parenchyma. d Axial post contrast excretory phase CT image confirms the mass (arrow) is within a calyx