Fig. 5
From: Pivotal role of PET/CT in characterization of occult metastasis with undetermined origin
A 50-year-old male patient presented with pathologically proven metastatic carcinoma left cervical nodes. PET/CT revealed axial CT (a), PET (b), and fused PET/CT (c) images showing right posterolateral nasopharyngeal wall avid FDG uptake (SUVmax 9.8 suggested site of primary malignancy). Axial CT (d) and fused PET/CT (e) images showing metabolically active bilateral cervical nodal lesions the largest on the left side (SUVmax 13). No other metabolically active lesions detected all over the rest of the body. Biopsy from the suspected nasopharyngeal lesion was done and revealed nasopharyngeal lymphoid tissue inflammatory cells, negative for malignancy (FP)