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The right paratracheal stripe is also important to assess, as it can reflect a process in the posterior mediastinum, in particular the spine or paraspinal soft tissues; normally it should measure 3 mm or less. The left paratracheal stripe is more variable and only seen in 25% of normal patients on posteroanterior views. [7]
These lymph nodes form four main groups including paratracheal, tracheobronchial, bronchopulmonary and pulmonary nodes. Paratracheal nodes are located on either side of the trachea. Tracheobronchial nodes can be divided into three nodes including left and right superior tracheobronchial nodes, and the inferior trachiobronchial node. The two ...
The right and left [citation needed] paratracheal lymph nodes (or paratracheal chains [citation needed]) are lymph nodes in the neck [1] situated lateral to the trachea and esophagus alongside the recurrent laryngeal nerve. They drain to the deep cervical lymph nodes. [2]
In radiology, Garland's triad (also known as the 1-2-3 sign) is the concurrence of reasonably symmetrical bilateral hilar lymphadenopathy and right paratracheal lymphadenopathy seen on a chest radiograph. [1] These features are suggestive of thoracic sarcoidosis. [2]
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Intrathoracic nodes are enlarged in 75 to 90% of all people; usually this involves the hilar nodes, but the paratracheal nodes are commonly involved. Peripheral lymphadenopathy is very common, particularly involving the cervical (the most common head and neck manifestation of the disease), axillary, epitrochlear, and inguinal nodes. [ 71 ]
EUS can reliably reach the lymph node stations 5, 7, 8 and 9. In the superior mediastinum the trachea is somewhat to the right of the esophagus which makes it often possible to reach left-sided area 2 and 4 lymph nodes and, less often, right sided paratracheal lymph nodes. [33]
A) Normal chest radiograph; B) Q fever pneumonia affecting the right lower and middle lobes. Note the loss of the normal radiographic silhouette (contour) between the affected lung and its right heart border as well as between the affected lung and its right diaphragm border. This phenomenon is called the silhouette sign: Differential diagnosis