Subpleural micronodules in diffuse infiltrative lung diseases: evaluation with thin-section CT scans.

Rémy‐Jardin, Martine; Beuscart, R.; Sault, M C; Ch, Marquette; Rémy, Jacques

doi:10.1148/radiology.177.1.2399312

Cited by 79 publications

(21 citation statements)

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“…The subpleural micronodules are triangular areas of increased attenuation of less than 7 mm in diameter [4]. They are observed in the upper lobes, with right-sided predominance, due to defects in lymphatic drainage.…”

Section: Discussionmentioning

confidence: 99%

Pulmonary anthracosis in children

Boespflug

Bourlière-Najean²,

Panuel³

et al. 1999

European Radiology

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Section: Discussionmentioning

confidence: 99%

Pulmonary anthracosis in children

Boespflug

Bourlière-Najean²,

Panuel³

et al. 1999

European Radiology

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“…The most usual form of silicosis occurs after many years of exposure to relatively low levels of dust. Silicosis is characterized by the presence of small discrete nodules [1][2][3] . The diagnosis of silicosis is mainly based on radiological findings, according to diagnosis standard GBZ70-2002 of pneumoconiosis and diagnosis standard films of pneumoconiosis in China 4) .…”

mentioning

confidence: 99%

The Value of High Resolution Computed Tomography in the Diagnostics of Small Opacities and Complications of Silicosis in Mine Machinery Manufacturing Workers, Compared to Radiography

Sun

Jin

et al. 2008

Journal of Occupational Health

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The Value of High Resolution Computed Tomography in the Diagnostics of Small Opacities and Complications of Silicosis in Mine Machinery M a n u f a c t u r i n g W o r k e r s , C o m p a r e d t o Radiography: Jinkai SUN, et al. Division of Pneumoconiosis, School of Public Health, ChinaMedical University, China-The purpose of this study was to assess the value and usefulness of high resolution computed tomography (HRCT) in the diagnostics of small opacities and complications of silicosis in mine machinery manufacturing workers, compared to conventional radiograms. The diagnosis of silicosis is mainly based on the radiological findings of workers exposed to the dust causing lung fibrosis. However, on radiograms many parenchymal structures overlap, which limits the sensitivity and specificity of the method. Difficulties in accurate interpretation of conventional radiograms in silicosis also result from their relatively low resolution. We randomly selected 30 I period silicosis patients from 77 I period silicosis patients working at a mine machinery manufacturing company. Out of 1078 non-silicosis and 162 0 + period silicosis subjects, 30 non-silicosis and 30 0 + period silicosis subjects were randomly selected and matched with the 30 I period silicosis subjects by age (± 3.0 yr) and occupational exposure time (± 2.0 yr). Chest Xrays were taken at maximal inspiration. For the HRCT examination, the GE Somatom plus apparatus was used. Eight, five and six subjects were respectively diagnosed as 0 + , I or I + period silicosis based on HRCT among 90 subjects whose original diagnoses were nonsilicosis, 0 + or I period silicosis based on radiography. The numbers of small opacities in HRCT scans were significantly higher than those seen in radiography in all lung zones (p<0.01). HRCT was more sensitive than radiography in detecting small opacities of midout zones of the lung, but no statistical significance was found between the two methods in the detection of small opacities of lower zones of the lung. A statistically significant increase in the detectability of bulla, emphysema, pleural, mediastinal and hilar changes was observed (p<0.05). HRCT might be more sensitive than radiography in detecting lung parenchymal changes suggestive of silicosis. (J Occup Health 2008; 50: 400-405)

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“…Thickening of the interstitial fiber network of lung by fluid, fibrous tissue, or interstitial infiltration by cells results in an increase in both linear and reticular opacities as seen on HRCT. 169,187,188 Septal thickening is not common in patients with interstitial fibrosis, except for those with sarcoidosis and asbestosis. 18-22), 186 and sarcoidosis, 164 in addition to a small number of rarer causes.…”

Section: Increased Lung Opacitymentioning

confidence: 99%

“…200,201 The term GGO refers to a hazy increase in lung opacity that is not associated with obscuration of underlying vessels. 18-24, Video 18-10) 164,[192][193][194] ; silicosis and coal workers' pneumoconiosis, which predominate in the subpleural and centrilobular regions 169,174,187 ; and lymphangitic spread of tumor, which is usually peribronchovascular and septal. 178,180,[202][203][204][205] It often reflects the presence of active disease, such as pulmonary edema (see eFig.…”

Section: Increased Lung Opacitymentioning

confidence: 99%