Unexpected 123 I FP-CIT (DaT SCAN) Uptake in Palpebral Conjunctival Melanoma.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 41697719.
- Also identified by DOI 10.1097/RLU.0000000000006363 and PMC identifier 13132075.
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Abstract
A 60-year-old woman underwent evaluation for a 6-year history of Parkinsonism. One year earlier, she had been diagnosed with malignant melanoma of the left palpebral conjunctiva, which recurred despite treatment. For the assessment of Parkinson disease, 123 I FP-CIT and Tc-99m ECD SPECT were performed. Unexpectedly, intense 123 I FP-CIT uptake was observed in the left eyelid lesion, whereas 99m Tc-ECD showed no uptake. CT and MRI demonstrated a corresponding mass consistent with recurrent malignant melanoma. This first report underscores the need to recognize extrastriatal tracer uptake.
Medical subject headings
- Melanoma
- Tropanes
- Conjunctival Neoplasms
- Dopamine Plasma Membrane Transport Proteins