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World J Radiol. May 28, 2014; 6(5): 177-191
Published online May 28, 2014. doi: 10.4329/wjr.v6.i5.177
Figure 10
Figure 10 Carcinoma of unknown primary. The patient presented with palpable right level IIa lymphadenopathy (blue arrows). Fine needle aspiration of the lymph node was positive for squamous cell carcinoma. Panendoscopy without biopsy and contrast-enhanced computed tomography (CT) (A) were unremarkable. Positron emission tomography/CT (B) showed a small hypermetabolic area in the right palatine tonsil (red arrows) proven to be squamous cell carcinoma by biopsy.