Fig. 1
From: Primary diffuse Rosai-Dorfman disease in central airway: a case report and literature review
Chest CT image of the RDD patient. A Chest CT three-dimensional image showed 0.9 × 1.0 × 1.5 cm irregular neoplasm (arrows) adhered to the right wall of the trachea and 1.0 × 1.4 × 2.5 cm irregular neoplasm (arrows) adhered to the opening of the right main bronchus resulting in airway stenosis. B Coronal position. C Mediastinal window. D DWI of enhanced chest MRI showed that signals from the neoplasms (arrow) in the trachea and the right main bronchus had been enhanced, and the apparent diffusion coefficient value was about 1.7. E–F The stenosis (arrows) of the trachea and the right main bronchus was significantly improved after two transbronchial resections. G–I After 5 months of follow-up, the trachea and the right main bronchus were unobstructed (arrows)