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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. One or more lung nodules can be ...
Chest x-ray showing dense opacity pleural effusion in the lower left lung of primary pulmonary TB. 5. Hilar or mediastinal lymphadenopathy ( bihilar lymphadenopathy ) - Enlargement of lymph nodes in one or both hila or within the mediastinum, with or without associated atelectasis or consolidation.
On a CT scan, pulmonary lacerations show up in a contused area of the lung, [9] typically appearing as cavities filled with air or fluid [16] that usually have a round or ovoid shape due to the lung's elasticity. [4] Hematomas appear on chest radiographs as smooth masses that are round or ovoid in shape. [1]
Dedicated chest CT confirmed persistence of the nodule and solitary nature. Axial CT-images in lung window setting a show a complex nodule with spiculation, pleural tags, irregular air bronchogram with bronchial interruption sign and ground glass component.
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.
However, in the setting of a lung nodule, an air bronchogram is actually more frequent in malignant than in benign nodules. [1] [4] studied the tumour-bronchus relationship and described five types: [1] In “Type 1” the bronchial lumen is patent up to the tumour. In “Type 2” the bronchus is contained in the tumor.