This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver, Subject name: Surgery
[{'content': 'Treatment of Simple cyst of liver: \nSelect and explain. \nA. Percutaneous drainage, B. Cysto enterostomy, C. Deroofing, D. Aspiration', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) De roofingRef: Sabiston Page 1469/ 20th edition* Simple cysts of the liver contain serous fluid, do not communicate with the biliary tree, and do not have septations.* 50% are single, Cuboidal/columnar epithelium as single layer is the lining.* They are regarded as Congenital Malformationa.* Spherical, Ovoid shape and can be large as 20cm* They can compress liver, regional atrophy and contralateral Hypertrophy.* IOC is USG* MC complication is Intracystic Bleeding.* Asymptomatic cysts no treatment needed.* Symptomatic cysts need Aspiration and injection of sclerosant.* Laparoscopic fenestration (Deroofing) is preferred treatment.', 'role': 'assistant'}]