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Nodular Fat-Sparing Hepatic Parenchyma as 11C-Choline-Avid Finding on PET/CT
Ba Duong Nguyen1, Matthew T Heller, Michael C Roarke
1From Mayo Clinic, Scottsdale, AZ.
Focal nodular fat sparing in the liver can show high tracer uptake on PET/CT scans, mimicking tumors. This case highlights nodular hepatic fat sparing with C-choline avidity during prostate cancer recurrence assessment.
Area of Science:
- Radiology
- Nuclear Medicine
- Oncology
Background:
- Focal nodular fat sparing in the liver can present with increased tracer uptake on PET/CT.
- This finding, particularly with F-FDG, can be mistaken for liver neoplasms.
Observation:
- A case of nodular hepatic fat sparing was observed during PET/CT.
- The assessment was for biochemical recurrence of prostate cancer.
Findings:
- The focal nodular fat sparing demonstrated significant C-choline avidity.
- This finding occurred against a background of hepatic steatosis.
Implications:
- Nodular hepatic fat sparing exhibiting C-choline avidity can mimic malignancy on PET/CT.
- Awareness of this imaging pattern is crucial for accurate diagnosis in patients undergoing prostate cancer surveillance.
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