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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Semen analysis of a male of an infertile couple shows the absence of spermatozoa but the presence of fructose. The most probable diagnosis is:
assistant
The correct answer is  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