A 16-Year-Old Boy Received a Severe Kick in the Right

A 16-year-old boy received a severe kick in the right flank while playing football at school. On examination in the emergency department, his right flank was severely bruised, and his right costovertebral angle was extremely tender on palpation. A specimen of urine showed microscopic hematuria. A diagnosis of damage to the right kidney was made.
-The following statements concerning blunt trauma to the kidney are correct except which?

A) The kidney tends to be crushed between the twelfth rib and the vertebral column.
B) The kidney can be injured by fractures of the twelfth rib (right kidney) or eleventh and twelfth ribs (left kidney) .
C) In most patients the kidney damage is mild and results in nothing more than microscopic hematuria, as in this patient.
D) In severe kidney lacerations, extensive hemorrhage and extravasation of blood and urine into the pararenal fat occurs.
E) In severe kidney lacerations, a mass caused by extravasated blood and urine behind the peritoneum may be palpated, especially on the right side.
F) Both kidneys lie on the posterior abdominal wall and are at the same vertebral level.