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. 2015 Jun 2;15:18. doi: 10.1186/s12880-015-0056-1

Figure 1.

Figure 1

Differentiation between heterotopic ossifications and loosening of the acetabular component. 58-year old male with pain in the left hip that started several months after surgery. Using SPECT/CT, the increased uptake can be traced to heterotopic ossifications close to the acetabular component differentiating between loosening of the cup A)-C). D) shows the planar SPECT image of the left hip with increased acitivity around the cup that cannot clearly be assigned to a specific structure. After a subsequent scintigraphic examination proving inactivity of the ossifications, these were removed surgically.