fig29

Figure 29. 49-year-old female with recurrent AdCC of the ethmoid air cells. (A) FDG PET/CT demonstrating an infiltrative, trans-spatial mass centered in the ethmoid air cells with marked FDG uptake, compatible with local recurrence; (B) FDG PET/CT in the same patient revealing distant osseous metastasis in a sclerotic right sacral ala lesion. AdCC: Adenoid cystic carcinoma; CT: computed tomography.