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: Pediatrics
[{'content': 'True about subcutaneous nodule in Rheumatic fever–a) Non tenderb) Most common manifestationc) Present on extensor surfacesd) Associated with arthritis \nSelect and explain. \nA. a, B. bc, C. ac, D. b', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Subcutaneous nodule\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\n\nIt is a rare manifestation of acute RF.\nSubcutaneous nodules are a late manifestation and appear 6 weeks after the onset of RF.\nOften seen in association with carditis.\nDo not appear as isolated manifestation.\nThese are round, firm, painless & nontender, freely movable subcutaneous lesions.\nFound along the extensor surfaces of tendons near the bony prominences such as elbow, knees, wrists, occiput and spine.\nLast for a week or two and disappear spontaneously.', 'role': 'assistant'}]