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Pediatric Radiology

, Volume 47, Issue 13, pp 1800–1808 | Cite as

FDG PET/CT appearance of local osteosarcoma recurrences in pediatric patients

  • Susan E. SharpEmail author
  • Barry L. Shulkin
  • Michael J. Gelfand
  • M. Beth McCarville
Original Article

Abstract

Background

Osteosarcoma is the most common pediatric malignant bone tumor, frequently surgically managed with limb salvage rather than amputation. Local recurrences are seen in up to 9% of osteosarcoma patients, with CT and MRI imaging often limited by metal artifacts.

Objective

To describe the [F-18]2-fluoro-2-deoxyglucose (FDG) PET/CT appearance of local osteosarcoma recurrences with correlation to findings on other imaging modalities.

Materials and methods

A retrospective review of pediatric osteosarcoma patients imaged with FDG PET/CT was performed in patients with pathologically proven local recurrences. FDG PET/CT findings were reviewed and correlated with available comparison imaging studies.

Results

Ten local osteosarcoma recurrences in eight pediatric osteosarcoma patients were imaged with FDG PET/CT. All eight patients had a local recurrence after limb salvage; two patients had a second local recurrence after amputation. All local recurrences were seen with FDG PET/CT, demonstrating solid (n=5) or peripheral/nodular (n=5) FDG uptake patterns. Maximum standard uptake values (SUVs) ranged from 3.0 to 15.7. In five recurrences imaged with FDG PET/CT and MRI, MRI was limited or nondiagnostic in three. In four recurrences imaged with FDG PET/CT and bone scan, the bone scan was negative in three.

Conclusion

Local osteosarcoma recurrences are well visualized by FDG PET/CT, demonstrating either solid or peripheral/nodular FDG uptake with a wide range of maximum SUVs. FDG PET/CT demonstrates the full extent of local recurrences, while MRI can be limited by artifact from metallic hardware. PET/CT appears to be more sensitive than bone scan in detecting local osteosarcoma recurrences.

Keywords

Children Fluorodeoxyglucose positron emission tomography/computed tomography Local recurrence Osteosarcoma 

Notes

Compliance with ethical standards

Conflicts of interest

None

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Susan E. Sharp
    • 1
    Email author
  • Barry L. Shulkin
    • 2
  • Michael J. Gelfand
    • 1
  • M. Beth McCarville
    • 2
  1. 1.Department of RadiologyCincinnati Children’s Hospital Medical CenterCincinnatiUSA
  2. 2.Department of Diagnostic ImagingSt. Jude Children’s Research HospitalMemphisUSA

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