Fig. 3From: Pediatric-onset limited ANCA-associated vasculitis arising during pre-existing chronic recurrent multifocal osteomyelitisComparison of CT findings (mastoid air cells-top & mandibular lesion-bottom) between 2018 and 2022. (a) CT showing clear mastoid air cells (2018), (b) CT showing opacification of the mastoid air cells (2022), (c) CT showing expansion of the right mandibular ramus and periosteal reaction (2018), (d) CT showing normal mandibular ramus (2022)Back to article page