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Chest
Diagnosis
Interstitial, Diffuse, and Inhalational Lung Disease
Other Inhalational Disorders
Aspiration
Aspiration
Tomás Franquet, MD, PhD
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KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Synonyms
Aspiration pneumonia
: Lung infection caused by aspiration of colonized oropharyngeal secretions
Aspiration pneumonitis
: Acute lung injury caused by aspiration of material inherently toxic to lungs
Aspiration bronchiolitis
: Chronic inflammatory reaction to recurrent aspirated foreign particles in bronchioles
Definitions
Aspiration syndromes
Aspiration pneumonia
: Most hospital-acquired infections
Lentil aspiration pneumonia
: Leguminous material (lentils, beans, peas)
Fistulas between esophagus & trachea, bronchi or lung: Congenital tracheoesophageal fistula; esophageal cancer (5-10%)
Aspiration pneumonitis
Mendelson syndrome
: Sterile gastric contents (peripartum, anesthesia)
Exogenous lipoid pneumonia
: Mineral oil or related substances
Hydrocarbon aspiration pneumonia
Children: Accidental poisoning
Fire-eaters: Hydrocarbon-containing fluids
Aspiration of inert fluids or particulates
Foreign bodies: Food particles (children); tooth fragments (elderly)
Near drowning: Massive amount of aspirated fresh or salt water
Aspiration bronchiolitis
: Obliterative bronchiolitis & gastroesophageal reflux (mimics asthma)
IMAGING
General Features
Radiographic Findings
CT Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Selected References
Marchiori E et al: Exogenous lipoid pneumonia. Clinical and radiological manifestations. Respir Med. 105(5):659-66, 2011
Marik PE: Aspiration pneumonitis and aspiration pneumonia. N Engl J Med. 344(9):665-71, 2001
Franquet T et al: Aspiration diseases: findings, pitfalls, and differential diagnosis. Radiographics. 20(3):673-85, 2000
Marom EM et al: The many faces of pulmonary aspiration. AJR Am J Roentgenol. 172(1):121-8, 1999
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Synonyms
Aspiration pneumonia
: Lung infection caused by aspiration of colonized oropharyngeal secretions
Aspiration pneumonitis
: Acute lung injury caused by aspiration of material inherently toxic to lungs
Aspiration bronchiolitis
: Chronic inflammatory reaction to recurrent aspirated foreign particles in bronchioles
Definitions
Aspiration syndromes
Aspiration pneumonia
: Most hospital-acquired infections
Lentil aspiration pneumonia
: Leguminous material (lentils, beans, peas)
Fistulas between esophagus & trachea, bronchi or lung: Congenital tracheoesophageal fistula; esophageal cancer (5-10%)
Aspiration pneumonitis
Mendelson syndrome
: Sterile gastric contents (peripartum, anesthesia)
Exogenous lipoid pneumonia
: Mineral oil or related substances
Hydrocarbon aspiration pneumonia
Children: Accidental poisoning
Fire-eaters: Hydrocarbon-containing fluids
Aspiration of inert fluids or particulates
Foreign bodies: Food particles (children); tooth fragments (elderly)
Near drowning: Massive amount of aspirated fresh or salt water
Aspiration bronchiolitis
: Obliterative bronchiolitis & gastroesophageal reflux (mimics asthma)
IMAGING
General Features
Radiographic Findings
CT Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Selected References
Marchiori E et al: Exogenous lipoid pneumonia. Clinical and radiological manifestations. Respir Med. 105(5):659-66, 2011
Marik PE: Aspiration pneumonitis and aspiration pneumonia. N Engl J Med. 344(9):665-71, 2001
Franquet T et al: Aspiration diseases: findings, pitfalls, and differential diagnosis. Radiographics. 20(3):673-85, 2000
Marom EM et al: The many faces of pulmonary aspiration. AJR Am J Roentgenol. 172(1):121-8, 1999
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