Fig. 2
Patient 1 (No.1): A 38-year-old male patient presented with cough, phlegm and intermittent fever for two months. The pathology of the pulmonary puncture suggested chronic granulomatous inflammation of the lungs. Finally, metagenomics next-generation sequencing (mNGS) of alveolar lavage fluid confirmed M. abscessus infection. Multiple patchy shadows (white arrows, SUVmax = 11.3) and consolidation (blue arrows, SUVmax = 3.7) in both lungs on the axial slices of 18F-FDG PET/CT scan images.Patient 2 (No.10): A 60-year-old female patient with a history of acute lymphocyte leukemia. After one cycle of chemotherapy, opportunistic intracellular mycobacterial infection appeared in both lungs and was confirmed by TB-DNA-PCR of the sputum. The patient was given active anti-infection treatment (oral azithromycin + ethambutol + rifampicin for 5 months). To assess the tumor activity after treatment, an 18F-FDG PET/CT scan was performed, which revealed multiple FDG-unavid nodules (white arrows, SUVmax = 2.2) in the right lung. The pathology of the wedge resection of the right lung nodule indicated pulmonary granulomatosis