EXAM:,  Renal ultrasound.,HISTORY: , Renal failure, neurogenic bladder, status-post cystectomy.,TECHNIQUE: , Multiple ultrasonographic images of the kidneys were obtained in the transverse and longitudinal planes.,COMPARISON:,  Most recently obtained mm/dd/yy.,FINDINGS:,  The right kidney measures 12 x 5.2 x 4.6 cm and the left kidney measures 12.2 x 6.2 x 4.4 cm.  The imaged portions of the kidneys fail to demonstrate evidence of mass, hydronephrosis or calculus.  There is no evidence of cortical thinning.,Incidentally there is a rounded low-attenuation mass within the inferior aspect of the right lobe of the liver measuring 2.1 x 1.5 x 1.9 cm which has suggestion of some peripheral blood flow.,IMPRESSION:,1.  No evidence of hydronephrosis.,2.  Mass within the right lobe of the liver.  The patient apparently has a severe iodine allergy.  Further evaluation with MRI is recommended.,3.  The results of this examination were given to XXX in Dr. XXX office on mm/dd/yy at XXX,radiology, lobe of the liver, status post cystectomy, renal ultrasound, renal failure, neurogenic bladder, bladder status, neurogenic, bladder, cystectomy, hydronephrosis, lobe, liver, ultrasound, mass, renal, kidneys/renal,