The incidence of traumatic rupture of the kidney is low (from 0.04 to 0.25 per cent of surgical admissions) but, according to McNeil1 and others, such injuries appear to be on the increase, mainly because of modern traffic accidents. At one time the high mortality rate attending renal injuries led to a pessimistic prognosis but now, as stated by Abeshouse,2 recent refinements in urologic and roentgenologic diagnosis and improvement in surgical technic have been responsible for a marked reduction in the mortality and morbidity of this condition.
I report here three private cases occurring during the past year (1937-1938), which Dr. R. C. Nelson of Beverly Hills and Dr. Layton Rogers of Whittier, Calif., diagnosed and referred to me.
REPORT OF CASES
Mrs. D. S., aged 25, a patient of Dr. R. C. Nelson, was struck by an automobile Dec. 20, 1937, while crossing an intersection