Hilum overlay sign | Radiology Reference Article - Radiopaedia.org
Nov 18, 2024 · The hilum overlay sign is useful in differentiating whether an opacity on a frontal chest radiograph in the region of the lung hilum is located within the hilum versus anterior or posterior to it. The sign refers to preserved visualization of the hilar vessels, excluding abnormalities that localize to the middle mediastinum .
Hilum overlay sign | Radiology Case - Radiopaedia.org
Mar 24, 2024 · This case is an example of the hilum overlay sign, a useful sign for the localization of thoracic lesions on frontal chest radiographs. The lesion turned out to be a benign schwannoma.
Hilum overlay sign | Radiology Case - Radiopaedia.org
The right hilum is visible through the anterior mediastinal mass on the chest X-ray, a finding known as the "hilum overlay" sign. This sign indicates that the mass is either anterior or posterior to the hilum.
Hilum overlay sign | Radiology Case - Radiopaedia.org
There is a soft tissue mass which we can visualize pulmonary vessels (red line) through it. So, the mass is probably located either anterior or posterior to the hilum, but not at the hilum. This is known as the hilum overlay sign.
Hilum convergence sign | Radiology Reference Article
Mar 17, 2020 · The hilum convergence sign is a useful chest radiograph sign to distinguish the cause of a bulky hilum as due to pulmonary artery dilatation or to a juxtahilar mass, including nodal enlargement.
Hilum overlay sign | Radiology Case - Radiopaedia.org
An excellent example of the hilum overlay sign - the mass lies in a plane other than that of the hilar vessels, which are visualized 'through' the mass. This was a primary lung cancer on subsequent imaging.
Dense hilum sign | Radiology Reference Article - Radiopaedia.org
Sep 24, 2024 · The dense hilum sign suggests a pathological process at the hilum or in the lung anterior or posterior to the hilum. Malignancy, especially lung cancer , should be suspected. ICU patients may aspirate following extubation, typically into segment B6, overlying the hilum ( B6 bronchus sign 5 ).
Hilum overlay sign - mediastinal lymphoma | Radiology Case ...
Tadevosyan A, Hilum overlay sign - mediastinal lymphoma. Case study, Radiopaedia.org (Accessed on 15 Dec 2023) https://doi.org/10.53347/rID-53664
Lung cancer - hilum overlay sign | Radiology Case - Radiopaedia.org
This was a proven lung malignancy on biopsy - the lung mass is large and illustrates the hilum overlay sign well.
Silhouette sign (x-rays) - Radiopaedia.org
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