Presentation
Incidental finding on whole body bone scan performed to determine cause of low back pain
Patient Data
Age: 65 years
Gender: Male
From the case:
Osteoporosis circumscripta
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Info
Well defined area of Increased isotope accumulation indicating bone turnover in the parietal region.
From the case:
Osteoporosis circumscripta
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Info
Rounded area of reduced bone density without expansion in the right parietal bone (arrows). No underlying brain abnormality, e.g. meningioma, and no associated soft tissue mass.
Case Discussion
Osteoporosis circumscripta is rare and thought to be due to the early or lytic phase of Paget disease. Differential diagnosis is fibrous dysplasia.
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