Fig 2.

Patient 5, a 59-year-old woman status post 3.5 months of radiation therapy (60 Gy) for treatment of squamous cell carcinoma of the oral tongue, with a nonenhancing ulceration with negative biopsy results (category 1). This patient has been followed for 16 months since initial diagnosis without evidence of tumor recurrence. A, Contrast-enhanced CT with ulceration in the right lateral part of the oral tongue (arrows). B, PET/CT with 18F-FDG activity (SUV, 12 mg/mL) along the posterior border (arrows) on the ulceration, suspicious for a recurrent tumor.