Solitary Peritoneal Metastasis in Case of Osteosarcoma Detected by FDG PET/CT.

Subedi, Ujjwal; Mahdi, Raza Abbas; Mittal, Bhagwant Rai; Singh, Harmandeep; Kumar, Rajender; Bachhal, Vikas · Clin Nucl Med · 2025

case_report · Level V

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Abstract

Primary osteosarcomas predominantly originate in the metaphyseal region of long bones. The introduction of 18 F-FDG PET/CT imaging has revealed unusual and often rare sites of metastatic spread. Peritoneal deposits in osteosarcoma are not a commonly reported finding in the literature. The present case highlights the 18 F-FDG PET/CT findings in a case of osteosarcoma of the left fibula with isolated peritoneal metastasis with no regional or distant metastases.

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