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
Testis is involved but epidydimis is spared in? 
Select and explain. 
A. Syphilis, B. Gonorrhea, C. Chancroid, D. Chlamydia
A: Syphilis
Answer: A: Syphilis 
Explanation: ANSWER: (A) SyphilisREF: Bailey and Love 24th ed p- 1411"Orchitis without epididymitis is seen in syphilis"CAUSES OF EPIDYDIMITIS:Chlamydia trachomatisNeisseria gonorrhoeaeE. coliUreaplasmaMycobacteriumCytomegalovirusCryptococcus