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n. pl. me·di·as·ti·na (-nə)
The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.

[New Latin mediastīnum, from neuter of Medieval Latin mediastīnus, medial, middle, from Latin, servant employed on general tasks (Medieval Latin anatomical sense probably influenced by Latin intestīnum, intestine), from medius, middle; see medhyo- in Indo-European roots.]

me′di·as·ti′nal (-nəl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a. mediastínico-a, rel. al mediastino;
___ emphysemaenfisema ___.
English-Spanish Medical Dictionary © Farlex 2012


adj mediastínico
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
CXR of one patient with CCAM showed collapse of right upper lobe of lung with mediastinal shift and left lung hyperinflation (Figure 1-A).
Surgical resection was planned for our patient to resolve symptoms associated with mediastinal shift. During surgery, we found that due to its delayed diagnosis and slow growth, the lesion had gradually filled the right hemithorax completely and had established vascular connections with the parietal pleura.
On the other hand, none of the residents could correctly identify loss of bronchoalveolar markings in a case of pneumothorax, while only four residents (5.4%) could correctly identify upper mediastinal shift in a case of TB and enlarged left atrial appendage in a case of heart failure.
Large lesions may cause lung hyperexpansion with mediastinal shift or flattening of the hemidiaphragm (Figure 1).
Chest X-ray (Figure 1) and CT alike showed left-sided atelectasis with ipsilateral mediastinal shift due to mucus plugging, a moderate left pleural effusion, and multiple spiculated cavitating nodules in the right lobe highly suspicious for malignancy.
Patient then underwent CT scan examination of the thorax that revealed a huge fat density (-65 to -105 Hounsfield units) lobulated lesion with scattered areas of soft tissue density and septations in right hemithorax causing passive collapse of the underlying right middle and lower lobe with contralateral mediastinal shift. The lesion was protruding anterolaterally into the extrapleural space through the 6th and 7th right intercostal spaces (Figure 3).
They consisted of multiloculated soft tissue lesions with areas of calcification causing significant mediastinal shift to the left side and destruction ofthe surrounding ribs.
Chest X-ray (Figure 1) done on day 25 of life showed a well-defined area of hyperlucency in the left upper zone with mediastinal shift consistent with a diagnosis of congenital lobar emphysema.
The latter is related to a preexisting patent foramen ovale whose blood flow is modified by the mediastinal shift. This syndrome usually occurs one year after a right pneumonectomy [8], and the clinical symptomatology is that of late respiratory failure.
The current case also presented with respiratory distress and showed a left mediastinal shift.
Solid viscera protruding through the hernia may show an opaque hemithorax with or without mediastinal shift. Hollow viscera are often present as loops of bowel within the thorax.
Chest radiograph showed small right hemithorax with ipsilateral mediastinal shift. A computed tomography (CT) scan of the chest (lung window) showed small right hemithorax and interlobular septal thickening [Figure 1].