Fig. 6
From: Assessment and characterisation of common renal masses with CT and MRI
Imaging presentation of an infiltrating papillary transitional cell carcinoma (TCC) on CT (upper row; a–d) and MRI (lower row; e–h). On CT there is an enhancing mass in the renal sinus surrounding the neck of the middle calyx (arrows in a and b) with a filling defect in the calyceal neck in the excretory phase (arrow in c) and a calyceal amputation in the CT urogram (arrow in d). On MRI the dilated calyx shows bleeding (arrow in e) and suspicious findings on diffusion-weighted imaging (arrow in f) with a clearly detectable enhancing mass along the calyceal neck (arrows in g and h)