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Pediatrics
Diagnosis
Airway
Normal Dynamic Airway Findings in Infants
Pseudothickening of Retropharyngeal Tissues
Pseudothickening of Retropharyngeal Tissues
A. Carlson Merrow, Jr., MD, FAAP
;
Lane F. Donnelly, MD
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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Definitions
Transient thickening of normal retropharyngeal soft tissues of infant on lateral airway radiograph
Redundant prevertebral tissues "swell" with expiration or poor extension
Appearance resolves with inspiration & adequate extension
Contributing factors to this appearance include
Relatively short necks of infants & young children lead to poor positioning for airway radiographs
Relatively long expiratory component of crying also challenges acquisition during maximal inspiration
IMAGING
Radiographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Demographics
Selected References
Donnelly LF. Airway. In: Fundamentals of Pediatric Imaging. Philadelphia: Elsevier Science Health Science, 2016
Darras KE et al: Imaging Acute Airway Obstruction in Infants and Children. Radiographics. 35(7):2064-79, 2015
Related Anatomy
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Definitions
Transient thickening of normal retropharyngeal soft tissues of infant on lateral airway radiograph
Redundant prevertebral tissues "swell" with expiration or poor extension
Appearance resolves with inspiration & adequate extension
Contributing factors to this appearance include
Relatively short necks of infants & young children lead to poor positioning for airway radiographs
Relatively long expiratory component of crying also challenges acquisition during maximal inspiration
IMAGING
Radiographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
CLINICAL ISSUES
Presentation
Demographics
Selected References
Donnelly LF. Airway. In: Fundamentals of Pediatric Imaging. Philadelphia: Elsevier Science Health Science, 2016
Darras KE et al: Imaging Acute Airway Obstruction in Infants and Children. Radiographics. 35(7):2064-79, 2015
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