case_images: PMC10808740_01
case_images: Mediastinal window of 640-slice chest computed tomography revealing tracheal diverticulum position and possible communication with trachea. The tracheal diverticulum is located on the right posterior side of the upper segment of the trachea, adjacent to the esophagus (A). Possible communication with the trachea was found in two level two scanning layers, and the widths of the openings were approximately 1.8 mm (B) and 1.1 mm (C) as marked by red arrows. The diverticulum is marked by yellow arrows in (A,B,C).
case_images: fmed-10-1340974-g001.jpg
case_images: PMC10808740_01_fmed-10-1340974-g001.jpg
case_images: F1
case_images: It showed a small, air-containing transparent cavity without separation, almost the same size as the last CT report, in the right posterior aspect of the trachea in the upper mediastinum, approximately 4 cm from the carina of trachea (Figure 1A). Possible communication with the trachea was found in two levels of scanning layers, and the widths of the openings were approximately 1.8 mm and 1.1 mm (Figures 1B, C). Repeated observations were made at the location where CT showed possible openings of the diverticulum, and no obvious holes or surface depressions were observed (Figure 2 and Supplementary Figures 1-4).
case_images: Electronic bronchoscopy revealing no prominent opening in the tracheal diverticulum.
case_images: fmed-10-1340974-g002.jpg
case_images: PMC10808740_01_fmed-10-1340974-g002.jpg
case_images: F2
case_images: Repeated observations were made at the location where CT showed possible openings of the diverticulum, and no obvious holes or surface depressions were observed (Figure 2 and Supplementary Figures 1-4).