This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Male Reproductive Medicine and Sexual Dysfunction, Subject name: Surgery
[{'content': 'Testis is involved but epidydimis is spared in? \nSelect and explain. \nA. Syphilis, B. Gonorrhea, C. Chancroid, D. Chlamydia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) SyphilisREF: Bailey and Love 24th ed p- 1411"Orchitis without epididymitis is seen in syphilis"CAUSES OF EPIDYDIMITIS:Chlamydia trachomatisNeisseria gonorrhoeaeE. coliUreaplasmaMycobacteriumCytomegalovirusCryptococcus', 'role': 'assistant'}]