This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urethra & Penis, Subject name: Surgery
[{'content': 'A 40 year old male, scrotal swelling. Exam - bag of worms swelling present. Which structure is responsible: \nSelect and explain. \nA. Pampiniform plexus of veins, B. Testicular artery + Pampiniform plexus of veins, C. Spermatic cord + Testicular artery, D. Testicular vein + Testicular artery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Pampiniform plexus of veinsRef: Bailey 26th Edition, Page 1381* Varicocele is a varicose dilatation of the veins draining the testis. Vein draining the testis and epididymis form the pampiniform plexus', 'role': 'assistant'}]