This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Multiple myeloma on radionuclide scanning presents as \nSelect and explain. \nA. Cold nodule, B. Hot nodule, C. Diffuse increased uptake, D. Diffuse decreased uptake', 'role': 'user'}, {'content': "Answer: A \nExplanation: Hot spots' or | distribution is seen inBone tumor or cancerBone metastasis from breast, lung, prostate, thyroid & kidney.Fracture, when it cannot be seen on a regular X-ray Bone injections (osteomyelitis)Cause of bone pain.Metabolic disorders such as osteomalacia, renal osteodystrophy, primary hyperparathyroidism, osteoporosis, complex regional pain syndrome &Paget's disease.(Refer: Sutton's Textbook of Radiology & Imaging, 7th edition, pg no:1251-1255)", 'role': 'assistant'}]