The spinnaker sign (also known as the angel wing sign) is a sign of pneumomediastinum seen on neonatal chest radiographs. It refers to the thymus being outlined by air with each lobe displaced laterally and appearing like spinnaker sails. This is distinct from the sail sign appearance of the normal thymus. http://radiopaedia.org/articles/spinnaker-sign
Pleural effusion tends to be used as a catch-all term denoting a collection of fluid within the pleural cavity. Chest x-rays are the most commonly used examination to assess for presence of a pleural effusion, however it should be noted that on a routine erect chest x-ray as much as 250-600ml of fluid is required before it becomes evident. Read more: http://radiopaedia.org/articles/pleural-effusion
Surgical emphysema (or subcutaneous emphysema) occurs when air/gas is located in the subcutaneous tissues (the layer under the skin). This usually occurs in the chest, face or neck. Radiolucent striations may be seen outlining pectoralis major, especially if the surgical emphysema is located in anterior chest wall (sometimes called the ginkgo leaf sign). This is due to air surrounding the muscle fibre bundles. http://radiopaedia.org/articles/surgical-emphysema-basic
Kartagener syndrome: CXR demonstrates situs inversus (rt sided heart, aorta + stomach bubble) Bilateral peribronchial cuffing+dilated bronchial tree,mainly in upper+ lower lobe on lt side. Kartagener syndrome -autosomal recessive hereditary disease+combination of findings that are also described w immotile cilia syndrome .Typically presents w: situs inversus, bronchiectasis,chronic sinusitis,male infertility.
A must not miss. Finals film. A tension pneumothorax requires recognition and rapid decompression. Even if all you perform is a needle thoracostomy (e.g. 14G intravenous cannula) inserted in the 2nd intercostal space in the midclavicular line you will save a life as you gain valuable time, before a larger underwater drain can be inserted. http://radiopaedia.org/cases/tension-pneumothorax-17
Pleural effusion tends to be used as a catch-all term denoting a collection of fluid within the pleural cavity. This can be further divided into exudates and transudates depending on the biochemical analysis of aspirated pleural fluid. With large volume effusions, mediastinal shift occurs away from the effusion. http://radiopaedia.org/articles/pleural-effusion