See. Oncology.

Case A

Determine extent of disease


Patient History
Male
71 in, 169 lbs

Indication
Determine extent of disease

Protocol
Injection of 12.6 mCi 18F-FDG followed by3D whole body PET imaging 63 minutes later. Total scan time was 6 minutes with 1 minute per bed position. Non-contrast enhanced, non-breath hold CT images were obtained over the same region for attenuation correction and for correlation with PET images.

Impression
This patient has a history of colorectal cancer and was referred to a PET/CT center for a follow-up to evaluate recurrence. The patient's CEA level had been rising and complained of some abdominal discomfort. A large amount of uptake was noted in the left supraclavicular region and small pulmonary nodes in the mediastinum. Multiple areas of FDG were observed in the liver confirming recurrent disease.


Case B

Determine extent of disease


Patient History
Female
72 in, 243 lbs

Indication
Determine extent of disease

Protocol
Injection of 9.6 mCi 18F-FDG followed by 2D whole body PET imaging 61 minutes later. Total scan time was 12 minutes. Non-contrast enhanced, non-breath hold CT images were obtained over the same region for attenuation correction and for correlation with PET images.

Impression
A large FDG avid mass was observed in the left upper lobe of the lung. Multiple areas of FDG uptake were also noted in the pulmonary nodules of the mediastinum.