air-fluid level

air-fluid level

on an image made with a horizontal x-ray beam, a sharp flat horizontal line representing the interface between gas density above and fluid density below.
References in periodicals archive ?
In the case of air-fluid level,air cysts and hydropneumothorax; hydatid cyst should be keep in mind(8).
Air-fluid level or subdiaphragmatic air was not observed (Figure 1).
In some cases, intraparenchymal bronchogenic cysts may communicate with the bronchial tree, resulting in air-filled cysts or an air-fluid level.
A plain radiograph (Waters view) revealed no signs of sinusitis, such as mucosal thickness or an air-fluid level.
If the cysts are perforated, in lung graphy, some different findings can be encountered such as the image of lotus, meniscus sign, and air-fluid level (1, 7).
Multicentric bone destruction is an important finding to distinguish mucormycosis from a carcinomatous lesion arising from the mucosa of paranasal sinuses, and the absence of air-fluid level distinguishes it from bacterial sinusitis.
The plain film findings of acute sinusitis include mucosal thickening, an air-fluid level and partial or total sinus opacification of paranasal sinuses.
Sagittal contrast-enhanced T1-weighted image (C) show air-fluid level in the cystic lesion suggestive of abscess cavity probably associated with air-forming bacterial infection.
The diagnosis of hydropneumopericardium requires the application of Shackelford criteria which include (i) high-pitched tympanic percussion note, (ii) loud metallic splashing sound synchronous with heart sounds, and (iii) characteristic chest X-ray with an air-fluid level in the pericardial cavity.
Most patients with hiatal hernias are asymptomatic, and the diagnosis is made incidentally on chest x-ray as a retrocardiac air-fluid level or on upper gastrointestinal studies.
Computed tomography (CT) and a barium swallow showed an air-fluid level in a left-sided Zenker diverticulum (ZD) measuring 12 x 8.
A CT scan delineated a distended bladder with circumferential intramural air and intravesical air-fluid level (Fig.