FIGURE 1 (Continued).

Examples of fusion PET/CT images of AAV patients during a period of suspected active disease. (A) CT scan, (B) PET scan, and (C) fusion PET/CT of a patient with suspected nasal involvement. (D) CT scan, (e) PET scan, and (F) fusion PET/CT of a patient with suspected ocular involvement. (G) CT scan, (H) PET scan, and (I) fusion PET/CT of a patient with enhanced uptake in the aorta and bone/bone marrow (occult lesions). (J) CT scan, (K) PET scan, and (L) fusion PET/CT of a patient with aortitis and cervical pachymeningitis (occult lesions). AAV = anti-neutrophil cytoplasmic antibodies-associated vasculitis, CT = computed tomography, PET = positron emission tomography.