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The correspondence between HRCT and pCLE imaging. The last scan (A) of the RS4, where the Alveoflex probe (arrow) is still seen and the next 1.0 mm step without the probe (arrow) (B), demonstrates the focus of the unaffected lung parenchyma. pCLE (C) displays fluorescent floating complexes in the preserved alveolar structures that are less pronounced than those in Figure 4. HRCT indicates high-resolution computed tomography; pCLE, probe-based confocal laser endoscopy.
