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18F-FDG PET/CT in a rare malignant extraskeletal osteosarcoma
Qi Cao1, Minh Lu, Thomas Huebner
1Departments of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
Clinical Nuclear Medicine
|July 17, 2013
Summary
FDG PET/CT imaging is valuable for staging and restaging extraskeletal osteosarcoma (EO), a rare cancer. This case highlights its utility in evaluating paraspinous EO without metastasis.
Area of Science:
- Oncology
- Radiology
- Medical Imaging
Background:
- Extraskeletal osteosarcoma (EO) is a rare soft tissue sarcoma.
- FDG PET/CT imaging's role in EO is not well-established.
- Paraspinous tumors present unique diagnostic challenges.
Observation:
- A case of extraskeletal osteosarcoma originating in the paraspinous musculature was evaluated.
- Initial FDG PET/CT imaging was performed for staging.
- Restaging FDG PET/CT imaging was conducted after treatment.
Findings:
- Initial staging FDG PET/CT showed a metabolically active paraspinous mass.
- No nodal or distant metastases were detected on initial staging.
- Restaging scans revealed postsurgical changes without evidence of recurrence or metastasis.
Implications:
- FDG PET/CT imaging is clinically relevant for staging extraskeletal osteosarcoma.
- This imaging modality aids in restaging and monitoring treatment response in EO.
- Further studies are warranted to establish standardized protocols for FDG PET/CT in EO.
