F-18 fluorodeoxyglucose (FDG) embolism

Case contributed by Pir Abdul Ahad Aziz Qureshi
Diagnosis almost certain

Presentation

Hodgkin lymphoma

Patient Data

Age: 20 years
Gender: Male

PET-CT

Nuclear medicine

Hypermetabolic focus without any CT correlate is seen in the right lung upper lobe.

PET-CT

Nuclear medicine

On follow-up PET-CT scan the previously seen hypermetabolic focus is not visualized.

Case Discussion

The hypermetabolic focus in the right lung upper lobe without any CT correlate seen on the 1st PET-CT scan vanished on the follow-up PET-CT scan likely representing an FDG embolism. The other differential of this hypermetabolic activity is that of early infective/inflammatory changes.

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