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High-resolution CT image showing ground-glass opacities in the periphery of both lungs in a patient with COVID-19 (red arrows). The adjacent normal lung tissue with lower attenuation appears as darker areas. Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs.
X-ray and CT of ground glass opacities and pneumothorax in pneumocystis pneumonia. [7] Pneumothorax is a well-known complication of PCP. [8] Also, a condition similar to acute respiratory distress syndrome (ARDS) may occur in patients with severe Pneumocystis pneumonia, and such individuals may require intubation. [9]
A pulmonary infiltrate is a substance denser than air, such as pus, blood, or protein, which lingers within the parenchyma of the lungs. [1] Pulmonary infiltrates are associated with pneumonia, tuberculosis, [citation needed] and sarcoidosis. [2] Pulmonary infiltrates can be observed on a chest radiograph. [citation needed]
In radiology, the tree-in-bud sign is a finding on a CT scan that indicates some degree of airway obstruction. [1] The tree-in-bud sign is a nonspecific imaging finding that implies impaction within bronchioles, the smallest airway passages in the lung.
The batwing sign is symmetrical, usually showing ground glass appearance and spares the lung cortices. [4] This sign is seen in individuals with pneumonia, inhalation injuries, pulmonary haemorrhage, sarcoidosis, bronchoalveolar carcinoma and pulmonary alveolar proteinosis. [4]
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X-ray or CT scans usually show physical changes to the lung structure (a "ground glass" appearance or a "mosaic" pattern) as the disease progresses. [1] [2] Mediastinal lymphadenopathy and bronchiectasis may also be seen. [1] Precise distribution and types of tissue damage differ among similar diseases, as does response to treatment with ...
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)