Related Experiment Video
Updated: May 8, 2026
![Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58641.jpg&w=3840&q=50)
Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury
Published on: November 9, 2018
Failure of Gallium-68 citrate to detect large, enhancing, intracerebral central nervous system tuberculomas: A
Selwyn Selva Kumar1, Adrian Keith Noronha1, Julie Hephzibah2
1Department of Infectious diseases, Christian Medical College, Vellore, Tamil Nadu, India.
Background:
Gallium-68 citrate is an emerging diagnostic tool for the evaluation of infections. Its performance in brain infections is unknown. The available diagnostics for central nervous system tuberculosis are imprecise.
Case Presentation:
We report a patient with large, active, enhancing, microbiologically confirmed tuberculomas in the right frontal lobe, who underwent Gallium-68 PET CT. It did not show any tracer uptake in the tuberculous lesions.
Conclusions:
We report caution in using Ga-68 PET CT for CNS TB and discuss the potential reasons for this observation.
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