case_images: PMC10896678_01
case_images: CT image of soft tissue neck without contrast (sagittal view). The image is showing multifocal areas of mucosal thickening in the subglottic region and in the trachea.
case_images: cureus-0016-00000053074-i01.jpg
case_images: PMC10896678_01_cureus-0016-00000053074-i01.jpg
case_images: FIG1
case_images: CT image of soft tissue neck without contrast (axial view). The image is showing stenosis of the trachea.
case_images: cureus-0016-00000053074-i02.jpg
case_images: PMC10896678_01_cureus-0016-00000053074-i02.jpg
case_images: FIG2
case_images: Histopathology image (H&E stain, 200X magnification). The biopsy is entirely composed of eosinophilic material with an amorphous, glassy appearance.
case_images: cureus-0016-00000053074-i03.jpg
case_images: PMC10896678_01_cureus-0016-00000053074-i03.jpg
case_images: FIG3
case_images: Biopsy results showed reactive respiratory mucosa with chronic inflammation and amyloid deposition revealed by Congo red staining (Figures 3-5).
case_images: Histopathology image (H&E stain, 400X). Higher power magnification image.
case_images: cureus-0016-00000053074-i04.jpg
case_images: PMC10896678_01_cureus-0016-00000053074-i04.jpg
case_images: FIG4
case_images: Biopsy results showed reactive respiratory mucosa with chronic inflammation and amyloid deposition revealed by Congo red staining (Figures 3-5).
case_images: Histopathology image (Congo red stain, 100X magnification). The image shows apple green birefringence on polarization. This staining pattern supports the presence of amyloid.
case_images: cureus-0016-00000053074-i05.jpg
case_images: PMC10896678_01_cureus-0016-00000053074-i05.jpg
case_images: FIG5
case_images: Biopsy results showed reactive respiratory mucosa with chronic inflammation and amyloid deposition revealed by Congo red staining (Figures 3-5).