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: Pathology
[{'content': "Diffuse multiple bone involvement, cafe-au-lait pigmentation and endocrine disturbances are the features of: \nSelect and explain. \nA. McCune Albright syndrome, B. Jaffe's syndrome., C. Mazabrauds syndrome, D. All of the above", 'role': 'user'}, {'content': "Answer: A \nExplanation: Polyostotic Fibrous dysplasia is of 2 types. In Jaffe type there is multiple bone involvement associated with cafe-au-lait spots. Extreme or diffuse multiple bone involvement, cafe-au-lait pigmentation, and endocrine disturbances are important features of McCune-Albright's syndrome. In polyostotic form, the curvature of femoral neck and proximal shaft of the femur increase markedly causing a shepherd's crook deformity.", 'role': 'assistant'}]