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Case Reports
. 2014 Jan;35(1):96-8.
doi: 10.4103/0971-5851.133732.

Extraskeletal osteosarcoma: An uncommon variant with rare metastatic sites detected with FDG PET/CT

Ameya D Puranik  1 , Nilendu C Purandare  1 , Munita M Bal  2 , Sneha Shah  1 , Archi Agrawal  1 , Venkatesh Rangarajan  1
Affiliations
Case Reports

Extraskeletal osteosarcoma: An uncommon variant with rare metastatic sites detected with FDG PET/CT

Ameya D Puranik et al. Indian J Med Paediatr Oncol. 2014 Jan.

Abstract

Extraskeletal osteosarcoma (ESOS) is a rare malignancy, which commonly presents with metastatic disease. Like their osteogenic counterparts, these tumors commonly metastasize to lungs and bones. We report the fluoro-deoxyglucose positron emission tomography findings in a case of ESOS presenting with a combination of rare metastatic sites such as brain, kidney and the bone marrow.

Keywords: Extraskeletal; fluoro-deoxyglucose positron emission tomography; osteosarcoma.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Figure 1
Figure 1
Photomicrograph of pathology section showing osteoclastic giant cells and pleomorphic malignant cells amidst osteoid (H and E, × 200)
Figure 2
Figure 2
(a) Maximum intensity projection image showing tracer uptake in left supraclavicular region (2a-arrow), in the region of mid thorax, mid abdomen, right lung, right kidney, left pelvis (all arrow heads) (b) axial fused PET/CT images show FDG avid mass arising from left trapezius muscle (arrow) (c) oblique coronal CT and fused PET/CT (d) images show origin of the mass from left trapezius, with no involvement of left scapula
Figure 3
Figure 3
Axial fused PET/CT images show FDG avid metastatic lesions in brain (a – arrow), left iliac marrow (b – arrow), D12 vertebral body (c – arrow), left internal oblique muscle (d – arrow) and right renal cortex (e – arrow)
See this image and copyright information in PMC

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