PMC8794318_01
Timeline from the onset of symptoms to the fatal event.
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At a rapid worsening of patient's clinical conditions requiring emergent oro-tracheal intubation, an urgent fibro-bronchoscopic evaluation showed the presence of an obstructive and non-viable subglottic formation with unsuccessful attempts of disobstruction till the onset of an irreversible cardio-circulatory arrest (Figure 1) due to acute respiratory distress and airway engorgement asphyxia.
Tracheal and bronchial blood clot.
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After en-bloc sampling of the airways, esophagus and heart, the section of the tracheal pars membranacea highlighted the presence of a blood clot that extended from the middle third of the tracheal lumen to the terminal bronchioles of both lungs (Figures 2,3).