Mar 21, 2025 · There is no meniscus, and only a veil-like increased density of the hemithorax may be visible. It is therefore especially difficult to identify similar sized bilateral effusions as the …

Typical appearances of a pleural effusion with a readily apparent meniscus. The effusion is beginning to cause mediastinal shift. Investigation is merited, not least to exclude an …

A large free pleural effusion appears as a dependent opacity with lateral upward sloping of a meniscus-shaped contour. The diaphragmatic contour is partially or completely obliterated, …

Apr 11, 2020 · The meniscus sign refers to the intradural filling defect which is outlined by the sharp meniscus of intrathecal contrast due to blockage of subarachnoid space by an intradural …

Jan 28, 2021 · The meniscus sign on cholangiography suggests impacted choledocholithiasis and is characterized by a concave cutoff of the lower common bile duct lumen. When a stone is …

Feb 20, 2024 · A meniscus sign has been named in multiple contexts: air meniscus sign in chest imaging most commonly due to invasive aspergillosis 1 Carman meniscus sign in barium …

Oct 18, 2024 · The clot meniscus sign, or simply the meniscus sign, is a radiological sign appreciated on digital subtraction angiography in the setting of endovascular clot retrieval for …

Nov 5, 2024 · Fluid on a plain film will appear relatively dense compared to the air in the lung and form a meniscus at the costophrenic angle. Small effusions are therefore seen as a meniscus …

Aug 28, 2023 · The differential attenuation of x-ray photons by two adjacent structures defines the silhouette, e.g. heart borders against the adjacent lung segments, and it is the pathological …

Jan 10, 2022 · A ghost meniscus, also known as the empty meniscus sign, refers to either a complete radial tear that has transected the meniscus, a displaced root avulsion or, …