| hyperlucent lung | The radiographic finding that a lung or portion thereof is less dense than normal, as from air trapping by a bronchial foreign body, asymmetric emphysema, or decreasing blood flow. See: unilateral hyperlucent lung. (05 Mar 2000) |
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| unilateral hyperlucent lung | Chronic bronchiolitis obliterans predominating on one side. See: unilateral lobar emphysema. (05 Mar 2000) |
| lung, hyperlucent | Hyperlucency of one lung with decreased size and vascularity of the lung. It is often associated with bronchiolitis obliterans and with adenovirus infection in childhood. (12 Dec 1998) |
| hyperlucent | A region on a chest film showing greater than normal film blackening from increased transmission of X-rays. See: unilateral hyperlucent lung. Origin: hyper-+ L. Lucens, shining, fr. Luceo, to shine (05 Mar 2000) |
| vanishing lung syndrome | <syndrome> Progressive decrease of radiographic opacity of the lung caused by accelerated development of emphysema or rapid cystic destruction of the lung from infection. (05 Mar 2000) |
| transplant lung syndrome | <syndrome> A syndrome associated with fever and diffuse bilateral pulmonary infiltration mainly at the base or at the hilum of the lung; can accompany rejection of an organ (kidney) transplant or follow a reduction in dosage of an immunosuppressive drug. (05 Mar 2000) |
| folded-lung syndrome | <syndrome> Collapse of part of the lung caught between shrinking fibrous pleura scars, sometimes resulting from pleural asbestosis. Synonym: round atelectasis. (05 Mar 2000) |
| air-conditioner lung | An extrinsic allergic alveolitis caused by forced air contaminated by thermophilic actinomycetes and other organisms. (05 Mar 2000) |
| airless lung | <radiology> Tumour, foreign body, mucous plug (12 Dec 1998) |
| anterior border of lung | The thin anteromedial or sternal edge of the lung which overlaps the pericardial sac anteriorly and forms the boundary between the mediastinal and costal surfaces. Synonym: margo anterior pulmonis. (05 Mar 2000) |
| apex of lung | The rounded, upper extremity of each lung that extends into the cupula of the pleura. Synonym: apex pulmonis. (05 Mar 2000) |
| apical interstitial lung disease | <radiology> A radiological diagnosis where fibrosis is seen in the apices (upper sections) of the lungs. Likely causes include: cystic fibrosis, ankylosing spondylitis, sarcoidosis, silicosis, eosinophlic granuloma, TB and fungus, particularly aspergillus infection. (25 Jun 1999) |
| asbestos lung disease | <radiology> Pleural plaques, earliest finding, may be only evidence, parietal pleura, 15-20 yrs after exposure, calcified after ca. 30 yrs, asbestosis, interstitial lung disease, perihilar regions to lung bases, shaggy heart, no cavitation or progressive massive fibrosis as in silicosis, crocidolite (blue) form most carcinogenic, associated with: malignant pleural mesothelioma, peritoneal mesothelioma, GI-tract malignancy (12 Dec 1998) |
| azygos lobe of lung | A small accessory lobe sometimes found on the apex of the right lung; separated from the rest of the upper lobe by a deep groove lodging the azygos vein. Synonym: lobus azygos. (05 Mar 2000) |
| base of lung | The lower concave part of the lung that rests upon the convexity of the diaphragm. Synonym: basis pulmonis. (05 Mar 2000) |