Elementary Lesions
Elementary Lesions
Ground-glass opacity with crazy paving pattern
Characteristics
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Combination of ground-glass opacity, thickened polygonal septal lines, and intralobular reticulation
Diagnostic Orientation
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Ground-glass opacity with crazy paving pattern can be associated with various conditions:
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pulmonary alveolar proteinosis ++
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cardiogenic pulmonary oedema
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invasive lepidic mucinous adenocarcinoma (previous denomination : bronchiolalveolar carcinoma (BAC))
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infectious lung disease (pneumocystosis, virus)
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drug-induced pneumonia
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exogenous lipoid pneumonia
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acute eosinophilic pneumonia
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acute interstitial pneumonia
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aspiration pneumonia
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sarcoidosis
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alveolar haemorrhage
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Ground-glass opacity with crazy paving pattern
Combination of ground-glass opacity, thickened polygonal septal lines, and intralobular reticulations predominantly in the lower lobes. Note the spatial heterogeneity of lesions.
![Ground-glass opacity with crazy paving pattern](/dk/hrct/sites/default/files/2022-04/bitmap%402x.png)