Semen analysis of a male of an infertile couple shows the absence of spermatozoa but the presence of fructose. The most probable diagnosis is:: (A) Prostatic infection, (B) Mumps orchitis, (C) Block in efferent duct system, (D) All of the above
Answer is C. The efferent ducts may be obstructed by an infection like tubercular, gonococcal or by surgical trauma following vasectomy.
The absence of fructose suggests the congenital absence of seminal vesicle or portion of the ductal system or both