This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': '35 years male presents with a swelling in scrotum that is non tender and seperate from testes and on transillumination, chinese lantern pattern is seen diagnosis \nSelect and explain. \nA. Vaginal hydrocele, B. Inguinal harnia, C. Epididymal cyst, D. Varicocele', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer- C. Epididymal cystCysts of the epididymis (multiloculated epididymal cyst, spermatocele) are not swrounded by fluid and for this reason are felt as swellings above, behind the testis, which is also easily palpable in this situation.Because of the septation, multiloculated epididlmal cysts have a characteristic 'Chinese lantern' aPPearance on transillumination.", 'role': 'assistant'}]