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There may also be multiple nodules. One or more lung nodules can be an incidental finding found in up to 0.2% of chest X-rays [3] and around 1% of CT scans. [4] The nodule most commonly represents a benign tumor such as a granuloma or hamartoma, but in around 20% of cases it represents a malignant cancer, [4] especially in older adults and ...
Bronchoscopy is not usually useful as these lesions tend to lie in the perifery of the lung. Fine needle aspirates may be not be sufficient to make the diagnosis. [7] [8] Blood tests are normal. CT shows a solitary nodule with may have some calcium present. PET scans may be positive. [9] [10]
Parenchymal hamartoma of the lung. The surrounding lung falls away from the well-circumscribed mass, a typical feature of these lesions. The hamartoma shows a variegated yellow and white appearance, which corresponds respectively to fat and cartilage. About 5–8% of all solitary lung nodules and about 75% of all benign lung tumors, are ...
Benign tumor growth causes a mass effect that can compress neighboring tissues. This can lead to nerve damage, blood flow reduction ( ischemia ), tissue death ( necrosis ), or organ damage. The health effects of benign tumor growth may be more prominent if the tumor is contained within an enclosed space such as the cranium , respiratory tract ...
A lung nodule is a discrete opacity in the lung which may be caused by: Neoplasm: benign or malignant; Granuloma: tuberculosis; Infection: round pneumonia; Vascular: infarct, varix, granulomatosis with polyangiitis, rheumatoid arthritis; There are a number of features that are helpful in suggesting the diagnosis: rate of growth
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.
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