Fig. 2From: Imaging analysis of 13 rare cases of renal collecting (Bellini) duct carcinoma in northern China: a case series and literature reviewa Case 3: axial unenhanced CT image shows a significant increase in the volume of the left kidney CDC. The left medulla is unclear. The lesions are mainly solid components (arrows). b Case 6: axial unenhanced CT image shows mixed density in the left kidney and a clear cystic low-density lesion with a clear border (arrows)Back to article page