A 50-year-old man comes to the physician for a follow-up appointment. He has a 1-month history of intermittent dark-colored urine. Physical examination shows no flank tenderness or mass.
Which of the following is the most likely to be seen in this patient?
A) History of 2-naphthylamine exposure causing abnormal squamous cells
B) History of 2-naphthylamine exposure causing abnormal transitional cells
C) History of cyclophosphamide use causing abnormal squamous cells
D) History of cyclophosphamide use causing abnormal transitional cells
E) History of tobacco use causing abnormal squamous cells
F) History of tobacco use causing abnormal transitional cells
G) History of swimming in fresh water in Africa causing abnormal squamous cells
H) History of swimming in fresh water in Africa causing abnormal transitional cells
I) History of swimming in salt water in South America causing abnormal squamous cells
J) History of swimming in salt water in South America causing abnormal transitional cells
