18F-FDG PET/CT Findings in a Case of Primary Leptomeningeal Melanomatosis With Diastematomyelia.
case_report · Level V
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- Record sourced from PubMed, PMID 41632576.
- Also identified by DOI 10.1097/RLU.0000000000006298.
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Abstract
Primary leptomeningeal melanomatosis is a rare and aggressive variant of primary central nervous system melanoma. Diagnosis is often challenging due to nonspecific radiologic features. We hereby report the 18F-FDG PET/CT and MRI findings in a case of primary leptomeningeal melanomatosis in a 47-year-old woman with a previously unidentified diastematomyelia. Spinal MRI showed diffuse abnormal signal. 18F-FDG PET/CT showed hypermetabolism most notably in the lumbar and caudal portion of the spinal cord, which was helpful to identify an appropriate site for biopsy.
Medical subject headings
- Fluorodeoxyglucose F18
- Meningeal Neoplasms
- Positron Emission Tomography Computed Tomography
- Melanoma
- Neural Tube Defects