Breast Cancer - 66-year-old female

History
A 66-year-old female with recent right breast excisional biopsy which showed low grade infiltrating ductal carcinoma.

CT Findings
6 cm ill-defined infiltrate/mass in the posterior segment of the right upper lobe and extending into the right lower lobe. Etiology is unclear. Suggested follow-up CT after treatment with antibiotics to access infection.

PET Findings
FDG uptake in the right upper lung field consistent with tumor which may be primary or metastatic disease.

Dosage
12.7 mCi FDG

Imaging
ECAT ACCEL

Courtesy of
Northern California P.E.T. Imaging Center