Fig. 7.1 Calyceal diverticula. (a) Ultrasound of the kidney demonstrates anechoic lesions (arrows) suggesting cortical cysts. (b) MR pyelographic phase examination confirms the diagnosis of calyceal diverticula (arrows). (c) Calyceal…

Anomalies of form Lacuna magna Posterior urethral valve Anterior urethral valve Congenital stenosis Congenital diverticulum Congenital anterior diverticulum Cowper duct dilatation (syringocele) Prostatic utricle Congenital polyps Megalourethra Congenital fistula Anomalies…

Renal enlargement Decreased or increased parenchymal echogenicity Minimal dilatation of renal pelvis Loss of normal corticomedullary differentiation Focal, poorly defined mass with variable echogenicity Fig. 2.1 Complicated acute bacterial pyelonephritis…

A. Nongenetic renal cysts 1. Simple cyst 2. Complex cyst 3. Multicystic dysplastic kidney 4. Cystic neoplasia 5. Medullary sponge kidney (MSK) B. Genetic cystic renal diseases 1. Autosomal dominant…

Fig. 14.1 Male patient. Carcinoma of the bulbous urethra. (a) Voiding cystourethrography shows an irregular stenosis (arrowheads) at the level of the bulbous urethra with marked dilatation of the posterior…

AAST classification Description of injury Grade I Contusion or non-expanding subcapsular hematoma with no laceration. Constitutes 80 % of patients Grade II Non-expanding perirenal hematoma confined to the retroperitoneum Laceration…

Fig. 10.1 Patent urachus. (a) Ultrasonography demonstrates a tubular structure (arrow) located in the midline. (b) In the sagittal plane, the structure extends from the bladder dome to the umbilicus….

Fig. 6.1 Renal amyloidosis. Most of the glomeruli in this renal biopsy exhibited extensive mesangial deposits of pink-staining amyloid (Case courtesy of Gretta Jacobs, M.D.) Fig. 6.2 Renal amyloidosis. Same…

Fig. 12.1 Fifteen-year-old status posttrauma. Serial images from retrograde cystourethrogram (a, b) demonstrate extravasation of the contrast material secondary to a traumatic rupture in the bladder neck Postvoid imaging of…