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. 2021 Mar 20;46(7):562–568. doi: 10.1097/RLU.0000000000003702

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Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Whole-body ^99mTc-MDP scan (A) showing asymmetrically increased uptake in the left pubis (arrowhead) and iliac region (arrow), whereas no obvious increased uptake is seen in the corresponding areas on ^99mTc-PSMA scan (B). SPECT/CT through 2 different slices highlighting the above changes localizes the iliac findings to the left femoroacetabular joint region (C) in keeping with degenerative change. The focal uptake seen in the left pubis (D) localizes to an area of sclerosis adjacent to the pubic symphysis. This was of concern for metastasis; however, degenerative change was also a consideration due to the proximity to the joint (rendering the finding equivocal). On ^99mTc-PSMA SPECT/CT scans (E and F), there was no pathological uptake in the corresponding areas to suggest osseous metastases.