- Etiology: parainfluenza virus
- Imaging: glottic + subglottic process
— AP radiograph – loss of normal shoulders of subglottic trachea due to subglottic edema = (church) steeple sign
— Lateral radiograph – hypopharynx distension, normal epiglottis/areyepiglottic folds, narrowing or loss of definition of subglottic trachea - Clinical: average age 12 months, most common cause acute upper airway obstruction in 6 months – 3 years, symptoms are barky cough due to vocal cord involvement / mild fever / shortness of breath, inspiratory stridor, no dysphagia
Radiology Cases of Croup


Endoscopy Cases of Croup
