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Case Reports
. 2014 Jul;39(7):e359-61.
doi: 10.1097/RLU.0b013e31829b2657.

Focal fat sparing of the liver: a nonmalignant cause of focal FDG uptake on FDG PET/CT

Chidambaram Natrajan Balasubramanian Harisankar  1
Affiliations
Case Reports

Focal fat sparing of the liver: a nonmalignant cause of focal FDG uptake on FDG PET/CT

Chidambaram Natrajan Balasubramanian Harisankar. Clin Nucl Med. 2014 Jul.

Abstract

Fat spared area of liver can appear as focal areas of elevated FDG uptake on a PET scan. This may mimic metastases. PET scan performed for metastatic workup in a 35-year-old female patient, a case of exocrine tumor of the pancreas, showed focal areas of increased FDG uptake. Contrast-enhanced CT performed as a part of the PET/CT study showed enlarged fatty liver with focal hyperdense areas suggesting fat sparing. Sulfur colloid scan showed physiological colloid uptake in the suspicious areas indicating preserved Kupffer cell function. The patient is on close follow-up without any evidence of metastatic disease.

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