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Osteoarthritis of the C1/2 facet joint: a Male, 85 years. Severe, unilateral neck pain for 4 years; CT shows typical unilateral arthritis of the C1/2 joint, b anatomical specimen depicting the situation as seen in the CT of a, c osteoarthritis of the atlantoaxial joint revealed by a well defined “hot spot” in the bone scan. This investigation may be useful as an unspecific tracer in cases with chronic neck pain. The positive result indicates the need for more specific diagnostic tests
