This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Orthopaedics
[{'content': 'Moth eaten bone is seen in which of the following ? \nSelect and explain. \nA. Osteoid osteoma, B. Multiple myeloma, C. Eosinophilic granuloma, D. Chondromyxoid fibroma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Moth eaten pattern - Areas of destruction with ragged borders - Implies more rapid growth More likely chance of malignancy - Example Multiple Myeloma Metastasis Ewing&;s Sarcoma ref : maheswari 9th ed', 'role': 'assistant'}]