Increased TSPO, COX-1, and COX-2 Uptake in Bone Marrow Within a Falx Cerebri Ossification.

Yan, Xuefeng; Siméon, Fabrice G; Pike, Victor W; Innis, Robert B; Zanotti-Fregonara, Paolo · Clin Nucl Med · 2024

case_report · Level V

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Abstract

Ossification is uncommon, generally asymptomatic, and often incidentally identified in imaging studies. We report on a 54-year-old man who participated as a healthy volunteer in a clinical trial using PET imaging to investigate neuroinflammation. An incidental ossified lesion in the anterior falx cerebri was revealed by MRI. CT scan showed a small hypodense center in the lesion, probably corresponding to bone marrow. The PET scans using 18 F-SF51, 11 C-PS13, and 11 C-MC1 showed increased uptake within this lesion, which was probably related to bone marrow activity within the ossification.

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