A 15-year-old high school football player is brought to your office by his mother. He is complaining of severe testicular pain since exactly 8:00 am. He denies any sexual activity & states that he hurts so bad he can't even urinate. He is nauseated & throwing up. He denies any recent illness or fever. His past medical history is unremarkable. He denies any tobacco, alcohol, or drug use. On examination you see a young teenager lying on the bed with an emesis basin. He is very uncomfortable & keeps shifting his position. His blood pressure is 150/100, his pulse is 110, and his respirations are 24. On visualization of the penis he is circumcised and there are no lesions and no discharge from the meatus. His scrotal skin is tense & red. Palpation of left testicle causes severe pain & patient begins to cry. His prostate examination is unremarkable. His cremasteric reflex is absent on the left but is normal on the right. By catheter you get a urine sample and the analysis is unremarkable. You send the boy with his mother to ER for further workup. What is the most likely diagnosis for this young man's symptoms?A) Acute orchitisB) Acute epididymitisC) Torsion of spermatic cord D) Prostatitis

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