case_images: PMC3469077_01
case_images: (a) At the top there is an image obtained by indirect laryngoscopy (IL) revealing severe edema of the posterior commissure and a polypoid mass on the right posterolateral subglottic wall (arrow). At the bottom there is an axial image of computer tomography (CT) at the cricoid cartilage level that shows a homogenous image with contrast enhancement at the subglottic submucosal region (arrow). (b) At the top there is an image obtained by IL 6 months after the treatment was finished. It shows absence of the subglottic mass. At the bottom there is an axial CT image at the cricoid cartilage level that reveals 100% free subglottic airway.
case_images: CRIM.OTOLARYNGOLOGY2012-437264.001.jpg
case_images: PMC3469077_01_CRIM.OTOLARYNGOLOGY2012-437264.001.jpg
case_images: fig1
case_images: The indirect laryngoscopy (IL) revealed severe edema in the posterior commissure of the larynx and a polypoid mass in the right posterior lateral subglottic wall (Figure 1(a)). It was occluding 60% of the of the subglottic airway (Figure 1(a)). Moreover, in subsequent IL no subglottic mass at 6 months and one year after treatment was found with mobile vocal cords and an adequate glottic closure (Figure 1(b)).
case_images: (a) Microscopic image of the submucosal subglottic portion of the mass after staining with hematoxylin and eosin. It shows intense basophilic plasma cells. (b) Microscopic image showing a positive CD138 marker at the immunohistochemical study.
case_images: CRIM.OTOLARYNGOLOGY2012-437264.002.jpg
case_images: PMC3469077_01_CRIM.OTOLARYNGOLOGY2012-437264.002.jpg
case_images: fig2
case_images: The microscopic study revealed intense basophilic plasma cells which invade the submucosal tissue and with CD138-positive immunohistochemistry, that is characteristic of EPM (Figures 2(a) and 2(b)).