What is mean by GGO?
Introduction. Ground-glass opacity (GGO) is a radiological finding in computed tomography (CT) consisting of a hazy opacity that does not obscure the underlying bronchial structures or pulmonary vessels (1). Pure GGOs are those with no solid components, whereas part-solid GGOs contain both GGO and a solid component.
What does ground-glass opacities in lungs mean?
Ground-glass opacity (GGO) is a common finding on high resolution CT, characterised by areas of hazy increased attenuation of the lung with preservation of bronchial and vascular margins; it is not to be confused with consolidation, in which bronchovascular structures are obscured.
Is GGO a lung cancer?
GGO can be a manifestation of a wide variety of clinical features, including malignancies and benign conditions, such as focal interstitial fibrosis, inflammation, and hemorrhage (3). However, lesions with GGO that do not disappear are often lung cancer or its precursor lesions (4).
How do you treat ground-glass opacities in the lungs?
In case of bacterial or viral infections, treating with intravenous antibiotics and other supportive medicine relieves the symptoms, and the haziness resolves spontaneously without any further management. In severe cases of ground-glass opacities, lobectomy surgery is used to remove the affected part of the lung.
What does ground-glass mean on a chest xray?
Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as an area of hazy opacification (x-ray) or increased attenuation (CT) due to air displacement by fluid, airway collapse, fibrosis, or a neoplastic process.
What does GGO stand for?
In radiology, ground glass opacity (GGO) is a nonspecific finding on computed tomography (CT) scans that indicates a partial filling of air spaces in the lungs by exudate or transudate, as well as interstitial thickening or partial collapse of lung alveoli.
What does GGO mean on a lung Xray?
GGO refers to gray areas that can show up in lung X-rays or CT scans. Normally, the lungs appear black in X-ray and CT scans. This indicates that they are free of any visible blockages. However, gray areas indicate increased density, meaning that something is partially filling the air spaces inside the lungs.
What is the pathophysiology of GGO?
GGO can be observed in both benign and malignant conditions, including lung cancer and its preinvasive lesions. Atypical adenomatous hyperplasia and adenocarcinoma in situ are typically manifested as pure GGOs, whereas more advanced adenocarcinomas may include a larger solid component within the GGO region.
What is the role of GGO in the diagnosis of pneumonia?
In the setting of pneumonia, the presence of GGO (as opposed to consolidation) is a useful diagnostic clue. Most bacterial infections lead to lobar consolidation, while atypical pneumonias may cause GGOs. It is important to note that while many of the pulmonary infections listed below may lead to GGOs, this does not occur in every case.