“…23,24 The body of evidence about false positive post treatment PET in patients with HD is constantly growing, [12][13][14]18 and to gain accurate data FDG-avid lesions must be checked by biopsy, specially in previously unaffected region. 3,4,10,[12][13][14]18,23,25 Noninvasive alternative is to wait and repeat PET imaging in one or two months. 24 This study has several limitations including a retrospective design, relatively small sample size reflecting the low incidence of HD and aggregation of patients with varying disease stages and treatment regimens.…”