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: Unknown
[{'content': "A 35-yrs-old woman complains of attacks of breathlessness, cyanosis and flushing. Apart from occasional diarrhea she has no abdominal symptoms. Abdominal examination reveals an enlarged nodular liver. If laparotomy is done, we could expect to find: \nSelect and explain. \nA. An ovarian tumor, B. A multicentric hepatoma, C. An appendicular carcinoid, D. Crohn's disease", 'role': 'user'}, {'content': 'Answer: C \nExplanation: History of breathlessness, cyanosis and flushing points towards carcinoid syndrome. Enlarged nodular liver means hepatic metastasis, which is essential to produce carcinoid syndrome.\nAppendicular carcinoids are detected in I in ever) 200-300 appendicectomies. It is one of the commonest sites for carcinoid tumours.\nCarcinoid tumours are commonly seen in appendix, small intestine, lungs, stomach etc.\nFlushing, diarrhoea, wheezing, pellagra like skin lesions are the common features.\nCarcinoid tumours secrete large amount of serotonin. Treatment is with somatostatin analogues like octreotide,lanreotide etc. Surgery is done whenever possible to remove the tumours.', 'role': 'assistant'}]