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Incidental Hydroxyapatite Ocular Implant Uptake on Bone Scan Done for Prostate Cancer Staging: Case Report and Brief Review

10.4274/mirt.galenos.2019.52386

• Guillaume Chaussé
• Jerome Laufer
• Gad Abikhzer
• Stephan Probst

Received Date: 01.11.2018 Accepted Date: 26.03.2019 Mol Imaging Radionucl Ther 2019;28(2):86-88 PMID: 31237141

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A 74-year-old man recently diagnosed with high-risk prostate cancer with high serum prostate specific antigen was referred to nuclear medicine for a technetium-99m-methylene diphosphonate (Tc-99m MDP) bone scan. On delayed three-hour anterior planar image, an unexpected round focus of intense uptake was found overlying the right orbit. Single-photon emission computed tomography/computed tomography localized the uptake to an ocular prosthesis. The hydroxyapatite composition of the ocular implant can be recognized by its bone-like density and its intense accumulation of Tc-99m MDP. Review of the patient’s history revealed remote right eye evisceration secondary to a complication of cataract surgery, consistent with the findings.

Keywords: Tc-99m MDP, bone scan, ocular implant, artificial eye, eye prosthesis, hydroxyapatite

Ethics

Informed Consent: Consent form was filled out by all participants.

Peer-review: Externally and internally peer-reviewed.

Authorship Contributions

Surgical and Medical Practices: G.C., J.L., G.A., S.P., Concept: G.C., J.L., G.A., S.P., Design: G.C., J.L., G.A., S.P., Data Collection or Processing: G.C., J.L., G.A., S.P., Analysis or Interpretation: G.C., J.L., G.A., S.P., Literature Search: G.C., J.L., G.A., S.P., Writing: G.C., J.L., G.A., S.P.

Conflict of Interest:No conflict of interest was declared by the authors.

Financial Disclosure:The authors declared that this study received no financial support.

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