we identified 3 groups : group 1-85 patients with gross hematuria or microscopic hematuria and shock after blunt trauma ( including all 23 with significant renal injuries ) , group 2-221 patients with microscopic hematuria but no shock after blunt trauma ( all with renal contusions ) and group 3-53 patients with penetrating trauma .
C0043253
blunt trauma
C0009938
contusions