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On radiological studies, thoracic splenic lesions are visualized using CT scans. Visualized lesions can be described as solitary or multiple nodules. The locations of the lesions are mostly in the lower left pleural space and/or splenic bed. Confirmation can be done using scintigraphy with 99mTc tagged heat-damaged red blood cells. [6]
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.
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.
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.
Anatomic lung resection, i.e. pulmonary lobectomy or pneumonectomy, in conjunction with removal of the lymph nodes from the mediastinum is the treatment modality that provides the greatest chance of long-term survival in patients with early stage non-small cell lung cancer.
T3 satell: Primary tumor is associated with separate tumor nodule(s) in same pulmonary lobe; T4 inv: Tumor invading the heart, great vessels, trachea, recurrent laryngeal nerve, esophagus, or spine; T4 ipsi: Tumor of any size with additional tumor nodule(s) in a different ipsilateral lobe; N Lymph node
2. Discrete nodule(s) without calcification—One or more nodular densities with distinct borders and without any surrounding airspace opacification. Nodules are generally round or have rounded edges. These features allow them to be distinguished from infiltrates or airspace opacities. To be included here, these nodules must be noncalcified.
Large, right lower lobe pneumatocele is shown, compromising ventilation in a premature infant with RDS and superimposed RSV pneumonitis. A pneumatocele is a cavity in the lung parenchyma filled with air that may result from pulmonary trauma during mechanical ventilation. [1] Gas-filled, or air-filled lesions in bone are known as pneumocysts. [2]