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: Radiology
[{'content': 'A 43 year old male during the preoperative evaluation of hernia repair is found to have a solitary pulmonary nodule. What is the impoant radiological feature to suggest its benign nature? \nSelect and explain. \nA. Large lesion with calcification, B. Irregular shape, C. No calcification, D. 1 cm lesion with uniform calcification', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The impoant radiological characteristics to suggest benign lesion in solitary pulmonary nodule: No growth in follow up imaging in two years and calcification Younger age group Regular shape Normal edge Ref: Lange radiology, Edition - 7, Page - 256.', 'role': 'assistant'}]