WebFeb 23, 2024 · The hummingbird sign, also known as the penguin sign, refers to the appearance of the brainstem in patients with progressive supranuclear palsy (PSP).. The atrophy of the midbrain results in a profile of the brainstem (in the sagittal plane) in which the preserved pons forms the body of the bird, and the atrophic midbrain the head, with … WebBird's beak sign. Bird's beak sign describes a dilated proximal esophagus with a smooth-tapered, distal oesophagus (short segment tapering) at the level of oesophageal hiatus, resembling bird's beak- Achalasia. The differential diagnosis are Oesophageal malignancy commonly referred to as pseudoachalasia.
Achalasia Radiology Reference Article Radiopaedia.org
WebJan 3, 2024 · Mosaic attenuation is a descriptive term used in describing a patchwork of regions of differing pulmonary attenuation on CT imaging.It is a non-specific finding, although is associated with the following: obstructive small airways disease: low attenuation regions are abnormal and reflect two phenomena occurring at the same time: 1. air … WebJul 15, 2024 · A barium swallow demonstrates the “bird-beak” appearance caused by the persistently contracted lower esophageal sphincter, as seen in Figure 1. Patients can … cannot find matching toolchain definitions
Sonographic findings in achalasia - PubMed
WebApr 1, 2011 · The esophagus is quite capacious and dilated throughout most of intrathoracic course and has an air-fluid level (Fig. 5B) and contains retained debris (Fig. 5E) posing a potential aspiration risk. ... Distal esophagus demonstrates a smooth, tapered narrowing caused by the contracted esophageal sphincter (“bird-beak” or “rat-tail” sign) WebAbdominal plain x-rays are commonly confirmatory for a volvulus, especially if a "bent inner tube" sign or a "coffee bean" sign are seen. These refer to the shape of the air-filled closed loop of colon which forms … WebNov 3, 2024 · The sunburst sign refers to the characteristic vascular supply seen in some meningiomas when seen from the side (tangential to the dural attachment). It is the result of the same phenomenon which results in the spoke wheel pattern of vessels (viewed in cross-section, parallel to the dural attachment).. The vascular supply of meningiomas is often … cannot find method value value