This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
[{'content': 'Van Nuys prognostic indicator for DCIS does not include which of the following parameter? \nSelect and explain. \nA. DCIS size, B. Age of the patient, C. Type of DCIS, D. Excision margin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Type of DCIS(Ref: Sterenberg diagnostic surgical pathology 5th ed p 312)The Van Nuys Prognostic Index (VNPI) classifies patients with DCIS to guide decisions on the best treatment option. The index uses patient age, tumour size, tumour growth patterns (histological grade) and the amount of healthy tissue surrounding the tumour after removal (resection margin width) to predict the risk of cancer returning.', 'role': 'assistant'}]