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  How Medical Imaging, CT Scan Diagnosis, and Radiology Interpretation Improve Emergency Diagnosis in Children Keywords: medical imaging, MRI, CT scan diagnosis, radiology interpretation, Rare imaging, emergency diagnosis, pediatric airway imaging, croup CT, steeple sign, pediatric radiology A Toddler Who Sounded Like a Barking Seal It was nearly midnight when worried parents rushed their one-year-old son into the emergency department. For three days, he had experienced intermittent fever, hoarseness, and a harsh barking cough that sounded unlike anything they had ever heard. As the child became increasingly restless, an inspiratory noise developed whenever he inhaled. Fortunately, he was still maintaining oxygenation and was not drooling—a small but clinically significant observation. Physical examination demonstrated cervical lymphadenopathy and stridor. The oropharynx appeared normal without obvious swelling. Because upper airway obstruction was suspected, chest and neck radio...