Clinical significance of prostate 18F-labelled fluorodeoxyglucose uptake on positron emission tomography/computed tomography: A five-year review

Figure 4 Incidental prostatic ¹⁸F-labelled fluorodeoxyglucose uptake in a 67-year-old patient with Stage IV diffuse large B-cell lymphoma. A, B: Focal uptake in the posterior right peripheral zone of the prostate at the level of the mid-gland as demonstrated on PET (A) and fused PET/CT (B); SUVmax = 4.5; C-E: Prostate MRI shows non-specific geographical intermediate signal on T2-weighted imaging (C), but with no matching restricted diffusion on b-1400 diffusion-weighted images (D) or ADC maps (E). The MRI findings are low probability for tumour. Subsequent transrectal ultrasound-guided biopsy showed no cancer. PET/CT: Positron emission tomography/computed tomography; MRI: Magnetic resonance imaging; ADC: Apparent diffusion co-efficient.