3.3. Imaging
All patients underwent post-contrast head CT and temporal bone high resolution CT (TBHRCT) prior to surgery. Imaging demonstrated 17 (51%) children with isolated SPA alone, six (18%) SPA with SST, four (12%) SPA with peri-sinus collection, four (12%) SPA, SST and peri-sinus collection. One (3%) child had SST with epidural abscess and one (3%) child had SPA with epidural abscess.