(a) HHV-6 pneumonitis. The data shown here was acquired after CBT. CT scan on day 33 showed reticulation, ground-glass opacity, consolidation, and peripheral lung sparing in bilateral lung fields. (b) FDG-PET scan on day 41 revealed a maximum standard uptake value of 6.0 in bilateral lung fields. (c) HHV-6 pneumonitis was diminished after foscarnet therapy as assessed by CT scan on day 82.