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  2. Ground-glass opacity - Wikipedia

    en.wikipedia.org/wiki/Ground-glass_opacity

    A reversed halo sign is a central ground-glass opacity surrounded by denser consolidation. According to published criteria, the consolidation should form more than three-fourths of a circle and be at least 2 mm thick. [12] It is often suggestive of organizing pneumonia, [13] but is only seen in about 20% of individuals with this condition. [12]

  3. Usual interstitial pneumonia - Wikipedia

    en.wikipedia.org/wiki/Usual_interstitial_pneumonia

    There may be superimposed CT features such as mild ground-glass opacity, reticular pattern and pulmonary ossification. Probable UIP pattern: [4] Predominantly subpleural and basal; Often heterogenous distribution; Reticular pattern with peripheral traction bronchiectasis or bronchiolectasis; There may be mild ground-glass opacity; Indeterminate ...

  4. Interstitial lung disease - Wikipedia

    en.wikipedia.org/wiki/Interstitial_lung_disease

    Small nodules. Acute: Hypersensitivity pneumonitis ... Ground glass opacities. ... Life expectancy after lung transplant is 5.2 years in those with idiopathic ...

  5. Lung nodule - Wikipedia

    en.wikipedia.org/wiki/Lung_nodule

    A lung nodule or pulmonary nodule is a relatively small focal density in the lung. A solitary pulmonary nodule (SPN) or coin lesion, [1] is a mass in the lung smaller than three centimeters in diameter. A pulmonary micronodule has a diameter of less than three millimetres. [2] There may also be multiple nodules.

  6. Idiopathic pulmonary fibrosis - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_pulmonary_fibrosis

    Average life expectancy following diagnosis is about four years. [1] Updated international guidelines were published in 2022, which some simplification in diagnosis and the removal of antacids as a possible adjunct therapy. [9]

  7. Chest radiograph - Wikipedia

    en.wikipedia.org/wiki/Chest_radiograph

    ground glass; consolidation (diffuse opacity with air bronchograms) location (where is the lesion worst?) upper (e.g., sarcoid, tuberculosis, silicosis/pneumoconiosis, ankylosing spondylitis, Langerhans cell histiocytosis) lower (e.g., cryptogenic fibrosing alveolitis, connective tissue disease, asbestosis, drug reactions)

  8. Fleischner sign - Wikipedia

    en.wikipedia.org/wiki/Fleischner_sign

    Fleischner sign is a radiological sign that aids the diagnosis of pulmonary embolism. [1] The sign indicates the dilatation of the proximal pulmonary arteries due to pulmonary embolism. [2] It was named after Felix Fleischner, who first described it. [3] The Fleishner sign is seen both on X-ray and CT scan of chest/thorax.

  9. Halo sign - Wikipedia

    en.wikipedia.org/wiki/Halo_sign

    The halo sign is also understood as a region of ground-glass attenuation surrounding a pulmonary nodule on an X-ray computed tomography (CT scan) of the chest. It can be associated with hemorrhagic nodules , tumors , or inflammatory processes, but is most commonly known as an early radiographic sign of invasive pulmonary infection by the fungus ...