A 21-year-old presents with inflammation of the testes and is diagnosed with orchitis. What is the most likely cause of his symptoms?
a. Herpes virus
b. Escherichia coli
c. Mumps
d. Cytomegalovirus
ANS: C
Mumps is the most common infectious cause of orchitis and usually affects postpubertal males. Herpes would not result in testicular swelling. Escherichia coli infection would not result in tes-ticular swelling and redness. Cytomegalovirus is a sexually transmitted disease and is not mani-fested in testes.
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