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Imaging Characteristics of Brain SPECT, PET, and MRI in Neurosyphilis
Eun Kyoung Choi1, Young Do Kim2, Hyeonseok Jeong1,3
1Department of Nuclear Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea.
Abstract:
The incidence of neurosyphilis has declined since effective penicillin therapy against Treponema pallidum was introduced. However, the diagnosis of neurosyphilis early in the disease course is very important in order to select appropriate antibiotic therapy. We report brain MRI, SPECT with Tc-99m ECD, and PET with F-18 FDG findings before antibiotic therapy in a neurosyphilis patient with neurological symptoms. The cerebral cortices showed hypoperfusion with a patchy distribution on SPECT and foci with high signal intensity on MRI, suggesting ischemia. Brain PET showed areas with hypometabolism in the temporoparietal lobes bilaterally.
Insights
Early diagnosis of neurosyphilis is crucial for effective treatment. This case report details brain imaging findings, including MRI, SPECT, and PET scans, in a patient with neurological symptoms before antibiotic therapy.
Area of Science:
- Neurology
- Infectious Diseases
- Radiology
Background:
- Neurosyphilis, a neurological complication of syphilis caused by *Treponema pallidum*, has seen reduced incidence due to penicillin therapy.
- Early and accurate diagnosis of neurosyphilis is critical for timely and appropriate antibiotic treatment, preventing irreversible neurological damage.
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