Items tagged “cxr”
84 results found
Article
Adult chest radiograph in the exam setting
A chest radiograph in the exam setting may contain a vast variety of pathology. However, consider the history and correlate the likely diagnoses that may be demonstrated on film. Furthermore, check your review areas to ensure that the abnormality is not at the corner of the film.
Locating patho...
Article
Chest radiograph zones
The chest radiograph zones are useful when describing the location of pathology on a frontal chest radiograph.
The chest radiograph is a 2D representation of a 3D structure. Since the interfaces between the lobes are oriented obliquely, it is often not possible to determine which lobe pathology...
Article
Chest x-ray lines and stripes
Chest x-ray lines and stripes are important to recognize on chest radiographs.
Lines are usually less than 1 mm in width and are comprised of tissue outlined on either side by air and typically represent pleural-covered structures within the middle and superior mediastinum 1,2:
anterior junct...
Article
Cardiothoracic ratio
The cardiothoracic ratio (CTR) aids in the detection of enlargement of the cardiac silhouette, which is most commonly from cardiomegaly but can be due to other processes such as a pericardial effusion.
Terminology
Some report cardiothoracic ratio as a percentage, however this is incorrect, as...
Article
Interstitial lung pattern (radiograph)
An interstitial lung pattern is a regular descriptive term used when reporting a plain chest radiograph. It is the result of the age-old attempt to make the distinction between an interstitial and airspace (alveolar) process to narrow the differential diagnosis.
A re-read of the timeless work o...
Case
Pneumoperitoneum
Published
28 May 2012
90% complete
Annotated image
X-ray
Article
Retrosternal airspace
The retrosternal airspace is seen as a normal lucency between the posterior aspect of the sternum and anterior aspect of the ascending aorta on lateral chest radiographs. This space normally measures less than 2.5 cm in width. Increased retrosternal airspace is a sign of pulmonary emphysema, whi...
Case
Adrenal metastasis from small cell lung cancer
Published
09 Aug 2012
73% complete
X-ray
CT
Ultrasound
Nuclear medicine
Case
Hiatus hernia
Published
20 Jan 2013
75% complete
X-ray
Article
Anterior junction line
The anterior junction (or junctional) line is a feature of frontal chest radiographs and chest CTs. It is a result of the parietal and visceral pleura meeting anteromedially. It normally contains a small amount of fat in between but can form a stripe of variable thickness if there is a lot of fa...
Article
Vertical fissure line in the lung
The vertical fissure line commences in or near the costodiaphragmatic recess and heads superomedially towards the hilum and terminates before or at the horizontal fissure. More commonly occurs on the right and may indicate partial volume loss of the lower lobe 1.
Article
Left upper lobe collapse in the exam
Getting a film with left upper lobe collapse in the exam is one of the many exam set-pieces that can be prepared for.
Description
This frontal chest radiograph shows hazy (or veil-like*) opacification of the left hemithorax that is associated with superior displacement of the left hilum and a ...
Article
Posterior wall of bronchus intermedius
The posterior wall of bronchus intermedius, also known as the intermediate stem line, is a stripe formed by the interface of the posterior wall of bronchus intermedius and the air within the azygo-esophageal recess 1.
It normally measures between 0.5-2 mm in thickness but is not considered abno...
Article
Left paratracheal stripe
The left paratracheal stripe is formed by the interface of the medial pleural surface of the left upper lobe and left lateral border of the trachea and/or the fat adjacent 1 with air within each structure forming the outline. It may not be visible if the left upper lobe contacts the left subclav...
Article
Aortopulmonary window (radiograph)
The aortopulmonary (aortic-pulmonary or AP) window (also known as APW, but see 'Terminology' below) is a radiological mediastinal space seen on frontal chest radiographs.
Terminology
The term should also not be confused with an aortopulmonary septal defect, which is occasionally also - unfortu...
Article
Posterior tracheal stripe
The posterior tracheal stripe (or line) is formed by air in the trachea and air in the right lung outlining the intervening posterior wall of the trachea and soft tissue. It is seen on lateral chest x-rays and normally measures less than 2.5 mm in width 1,2. Abnormal thickening has a variety of ...
Article
Retrotracheal space
The retrotracheal space (or Raider triangle) is a radiolucent mediastinal space best seen on lateral chest x-rays. It is normally triangular in shape but can vary greatly in size and shape depending on the patient's body habitus and lung volume 1.
Boundaries
anterior: posterior tracheal stripe...
Article
Right paraspinal line
The right paraspinal (also known as the paraspinous or paravertebral) line (or stripe) is a feature of frontal chest x-rays and is formed by the interface of the right lung and the posterior mediastinal soft tissue.
The right paraspinal line can be laterally displaced by a range of posterior m...
Article
Left paraspinal line
The left paraspinal (also known as the paraspinous or paravertebral) line (or stripe) is a feature of frontal chest x-rays. It is formed by the interface between the left lung and the left posterior mediastinal soft tissues 1. It is more commonly seen than the right paraspinal line.
Lateral dis...
Article
Aortic-pulmonary stripe
The aortic-pulmonary stripe is an uncommon feature of frontal chest radiographs and was first described by Keats in 1972 1.
It is formed by the interface of the pleural surface of the anterior segment of the left upper lobe contacting the mediastinal fat that is anterolateral to the pulmonary t...
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