18F-FDG positron emission tomography computed tomography and the "underground map" appearance in imaging Horton's arteritis

• Main Authors: Abdul Jalil, Nordin, Abdul Rahim, Noraini, Md Shalleh, Nursuzaili, Rossetti, Claudio
• Format: Article
• Language: English
• Published: Singapore Medical Association 2008
• Online Access: http://psasir.upm.edu.my/id/eprint/12632/1/18F-FDG%20positron%20emissin%20tomography.pdf; http://psasir.upm.edu.my/id/eprint/12632/
• Institution: Universiti Putra Malaysia

A majority of the clinical use of positron emission tomography (PET)-computed tomography (CT) is related to cancer management. Its application in evaluating inflammatory diseases and pyrexia of unknown origin is becoming popular. We reviewed the fluorine-18-fluorodeoxyglucose PET-CT findings of an 80-year-old woman with nonspecific clinical presentation consisting of generalised malaise, moderately high fever and weight loss. Prior CT and magnetic resonance imaging were not helpful in providing a clinical diagnosis. The diagnosis was Horton's arteritis, and the patient responded well to high-dose steroids.