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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]
Diagnosis of DAH is often given following observation of a patient presenting with hemoptysis, anemia, and cough, [3] along with a chest X-ray showing alveolar infiltrates in the lungs, [4] which are areas of air space in the lungs that are opacified and of higher density that normal, usually indicating that they are filled with a substance ...
Chest radiography is usually the first test to detect interstitial lung diseases, but the chest radiograph can be normal in up to 10% of patients, especially early in the disease process. [17] [18] High-resolution CT of the chest is the preferred modality and differs from routine CT of the chest. Conventional (regular) CT chest examines 7–10 ...
A chest x-ray of transfusion-related acute lung injury (left) which led to ARDS. Right is the same patient with resolved injury 72 hours after ventilator support. Note the clearance of bilateral diffuse infiltrates.
Causes of Kerley B lines include pulmonary edema, lymphangitis carcinomatosa and malignant lymphoma, viral and mycoplasmal pneumonia, interstitial pulmonary fibrosis, pneumoconiosis, and sarcoidosis. They can be an evanescent sign on the chest x-ray of a patient in and out of heart failure.
AP chest x-rays are harder to read than PA x-rays and are therefore generally reserved for situations where it is difficult for the patient to get an ordinary chest x-ray, such as when the patient is bedridden. In this situation, mobile X-ray equipment is used to obtain a lying down chest x-ray (known as a "supine film").
Typically, an area of white lung is seen on a standard X-ray. [5] Consolidated tissue is more radio-opaque than normally aerated lung parenchyma, so that it is clearly demonstrable in radiography and on CT scans. Consolidation is often a middle-to-late stage feature/complication in pulmonary infections.
Often heterogenous distribution, being occasionally diffuse, and may be asymmetrical; 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