PMC4896172_01
66-year-old woman with breast cancer evaluated for metastatic disease with PET-CT. Focal FDG activity in the interatrial septum on PET corresponded with low attenuation on CT, consistent with lipomatous hypertrophy of the interatrial septum.
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fig1
Focal 18F-flurodeoxyglucose (FDG) activity with standardized uptake value (SUV) measuring 2.4 was noted on the transaxial images at the interatrial septum, which correlated with a linear area of low attenuation measuring fat density (white arrow) (-57 Hounsfield units) on CT scan (Fig. 1).
PMC4896172_02
54-year-old woman with lung cancer, status post right upper lobectomy, being evaluated for metastatic disease. Fused PET-CT images show focal FDG uptake in the right atrial appendage (white arrow), with no anatomic abnormality seen on corresponding CT images.
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On the fused PET-CT images (Fig. 2), focal FDG uptake is seen in the right atrial appendage (white arrow).
PMC4896172_03
68-year-old man with colon cancer evaluated for metastatic disease. PET-CT images focal FDG uptake is seen in the right upper medistinum, corresponding to the distal end of a central venous catheter (white arrow).
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FDG PET-CT showed focal FDG uptake is seen in the right upper medistinum corresponding to the distal end of a central venous catheter (white arrow) with an SUV measuring 5.0 (Fig. 3).