Philippe Camus, M.D.
Dijon, France
XXXIII - Histopathology (for pulmonary pathology see in ‘Pneumotox’ (a free companion App)
Last update 17/06/2026
Bland alveolar edema/flooding. Typical pulmonary edema is acute alveolar flooding with pulmonary congestion but little or no interstitial changes otherwise. Pulmonary edema may accompany severe NSIP and granulomatous ILD. See also II/IIa
II. Myocardial dysfunction - Heart failure
II.d Cardiovascular collapse - Cardiogenic shock - Hypotension
III. Myocardial ischemia - Coronary artery disease
III.c Coronary vasospasm - Vasospastic angina
IV. Heart block (bundle branch-, AV-block)
IV.a Heart block (bundle branch- or AV-)
X. Pulmonary edema
X.b Pulmonary edema, noncardiogenic (NCPE)
XIV. Pleural involvement
XIV.e Hemothorax - Serosanguineous pleural effusion
XV. Chest pain
XV.a Chest pain (acute or subacute), lone or prominent
XVI. Hemorrhage - Bleeding - Hematoma(s)
XVI.e Alveolar hemorrhage (AH), diffuse AH (DAH)
XVI. Hemorrhage - Bleeding - Hematoma(s)
XVI.h Coagulopathy
XVI. Hemorrhage - Bleeding - Hematoma(s)
XVI.i Hemoptysis
XX. Vasculitis
XX.c Vascultis (pulmonary, extrathoracic or systemic) - ANCA status unknown or negative
XXII. Acute respiratory/cardiorespiratory failure
XXII.b Acute lung injury - ARDS
XXIV. Interstitial lung disease - Pulmonary infiltrates - Pulmonary fibrosis
XXIV.b Pneumonitis (ILD), acute and/or severe (may cause ARDS)
XXIV. Interstitial lung disease - Pulmonary infiltrates - Pulmonary fibrosis
XXIV.c Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia)
XXIV. Interstitial lung disease - Pulmonary infiltrates - Pulmonary fibrosis
XXIV.f Diffuse alveolar damage (DAD) imaging pattern
XXVIII. Large airway involvement
XXVIII.a Angioedema (may cause UAO, asphyxia and death)
XXIX. Small airway involvement
XXIX.a Bronchospasm - Wheezing - Asthma
XXIX. Small airway involvement
XXIX.c Severe or catastrophic bronchospasm or asthma attack (can be fatal)
XXXIII. Histopathology (for pulmonary pathology see in ‘Pneumotox’ (a free companion App)
XXXIII.j Path: Pulmonary edema
XXXVI. Autoimmune syndromes - Systemic reactions or conditions
XXXVI.f Anaphylaxis - Anaphylactoid reaction (either of these can be fatal)
X. Pulmonary edema
X.b Pulmonary edema, noncardiogenic (NCPE)
XVI. Hemorrhage - Bleeding - Hematoma(s)
XVI.e Alveolar hemorrhage (AH), diffuse AH (DAH)
XXII. Acute respiratory/cardiorespiratory failure
XXII.b Acute lung injury - ARDS
XXIV. Interstitial lung disease - Pulmonary infiltrates - Pulmonary fibrosis
XXIV.k Pulmonary infiltrates
XXIV. Interstitial lung disease - Pulmonary infiltrates - Pulmonary fibrosis
XXIV.ag Chemical (toxic) pneumonitis
XXVIII. Large airway involvement
XXVIII.b Epiglottitis
XXVIII. Large airway involvement
XXVIII.c Tracheal injury
XXIX. Small airway involvement
XXIX.l Bronchiolitis (a clinical-imaging pattern suggestive of)
XXIX. Small airway involvement
XXIX.m Obstructive airway dysfunction (see also IVc, XVx)
XXIX. Small airway involvement
XXIX.n Reactive airway dysfunction syndrome (RADS)
XXX. Imaging features
XXX.k Imaging: Centrilobular micronodules (can be diffuse)
XXX. Imaging features
XXX.n Imaging: A 'tree-in-bud' pattern
XXXIII. Histopathology (for pulmonary pathology see in ‘Pneumotox’ (a free companion App)
XXXIII.j Path: Pulmonary edema
XXXVI. Autoimmune syndromes - Systemic reactions or conditions
XXXVI.r Anti-GBM-related pneumorenal syndrome and DAH (Goodpasture) or flare of
