Fig. 1From: Extraosseous Ewing's sarcoma/peripheral primitive neuroectodermal tumour of the kidney: a case report and literature reviewCEUS patterns of EWS/pPNET of the kidney in a 20-year-old female patient. a The lesion demonstrates annular enhancement in the cortical phase (arrows). b The lesion showed heterogeneous enhancement in the parenchymal phase (arrow). c The lesion demonstrates simultaneous wash-in with surrounding renal parenchyma in the late enhancement phase (arrow)Back to article page