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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)
- Aspiration pneumonia: Most hospital-acquired infections
- Aspiration syndromes
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)
- Aspiration pneumonia: Most hospital-acquired infections
- Aspiration syndromes
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
