A clinical photograph captures an oropharyngeal examination of a patient using a clear plastic laryngoscope or tongue depressor. The primary finding, indicated by a yellow arrow, is a grossly edematous and erythematous uvula (uvulitis). The uvula is significantly enlarged and swollen, appearing bulbous and distorted, which contributes to significant narrowing of the oropharyngeal airway space. The surrounding mucosa of the soft palate and posterior pharynx exhibits generalized erythema, suggesting acute inflammation. This visual evidence is characteristic of conditions such as Quincke's edema (isolated uvular angioedema) or anaphylaxis-related airway involvement. The palatine tonsils and tongue are visible, with the latter being depressed to allow for a clear view of the upper airway. This image serves as a teaching tool for recognizing emergency airway obstruction signs in otolaryngology and emergency medicine.

This clinical photograph displays a close-up view of a patient's oral cavity exhibiting severe macroglossia (tongue swelling). The tongue is markedly enlarged and edematous, occupying nearly the entire visible oropharyngeal space and obscuring the soft palate and uvula. This presentation is consistent with a Mallampati Class IV airway, indicating a high risk for airway obstruction. The tongue surface appears relatively smooth with focal areas of pallor and erythema. A clear medical tube, likely an endotracheal or orogastric tube, is positioned at the corner of the mouth, secured with white gauze that shows minor serosanguinous staining. The surrounding perioral region and lips also show signs of swelling. This image serves as a critical educational example of acute angioedema, frequently associated with ACE inhibitor use (such as lisinopril), highlighting the importance of emergent airway management in clinical practice.

This diagnostic endoscopic image, obtained during drug-induced sleep endoscopy (DISE), illustrates the oropharyngeal airway and its anatomical landmarks. The base of the tongue (BOT) is positioned in the superior aspect of the frame, showing significant tissue hypertrophy of the lingual tonsils. This enlargement causes a marked anteroposterior narrowing of the airway space. Inferior to the BOT, the epiglottis (E) is partially visible but obscured by the overriding base of the tongue. The posterior pharyngeal wall (PPW) is seen at the bottom of the image, maintaining a smooth, pink mucosal appearance. The visual evidence confirms a pattern of airway obstruction driven by lingual tonsil hypertrophy, a common finding in patients with obstructive sleep apnea (OSA). The image demonstrates the spatial relationship between the lingual tonsillar tissue and the laryngeal inlet, highlighting the reduction in the cross-sectional area of the pharyngeal lumen.

This diagnostic image is an axial computed tomography (CT) scan of the neck at the level of the oropharynx and mandible. The primary finding is a large, bulky soft tissue mass centered at the base of the tongue, which demonstrates heterogeneous density. This mass causes significant posterior displacement of tissues, resulting in near-complete obstruction of the oropharyngeal airway. An endotracheal or tracheostomy tube is visible within the narrowed airway lumen, characterized by its hyperdense circular wall and central air-filled (black) lumen, indicating active airway management. The surrounding anatomy shows the mandible anteriorly, the cervical vertebral body posteriorly, and the major vascular structures of the neck laterally. The subcutaneous fat appears appropriately hypodense, while the neck musculature maintains a typical intermediate density. No significant cervical lymphadenopathy is visualized in this specific plane. This image serves as a clinical example of upper airway obstruction secondary to base-of-tongue pathology, relevant for otolaryngology and emergency medicine curricula.