fig15

Figure 15. REAH. (A) Coronal CT and (B) coronal MRI images [T2 (left) and postcontrast T1 (right)] demonstrate widening of the bilateral OCs (red arrows) and trapped secretions in the left frontoethmoidal recess (yellow arrow); (C) Coronal F-18 FDG PET shows no FDG-avid signal in this region. REAH: Respiratory epithelial adenomatoid hamartoma; CT: computed tomography; MRI: magnetic resonance imaging; OCs: olfactory clefts.