Search PubMed⌕ Search
Home/Archive/PubMed

PubMed · 8140994

Proliferative and constrictive bronchiolitis: classification and radiologic features.

K Garg·D A Lynch·J D Newell·T E King
View original source ↗Export metadata ↓

Abstract

The small airways of the lung consist of the terminal bronchioles, respiratory bronchioles, and alveolar ducts. A recently introduced pathologic classification system divides bronchiolitis into proliferative and constrictive types. The histologic classification of small-airways disease into proliferative and constrictive bronchiolitis frequently correlates with the radiographic appearances. Proliferative bronchiolitis is characterized by air-space opacification, whereas constrictive bronchiolitis tends to be associated with lobular areas of decreased attenuation and airway dilatation. The purpose of this essay is to illustrate the radiographic and CT features of these two varieties of bronchiolitis.

Explore related subjects

BronchiolitisBronchiolitis ObliteransFemaleHumansLungMaleTomography, X-Ray ComputedJournal ArticleResearch Support, U.S. Gov't, P.H.S.Review

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

K Garg, D A Lynch, J D Newell, T E King. 1994. Proliferative and constrictive bronchiolitis: classification and radiologic features.. https://doi.org/10.2214/ajr.162.4.8140994

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2006

Chest radiography in children aged 2-59 months diagnosed with non-severe pneumonia as defined by World Health Organization: descriptive multicentre study in Pakistan.

OBJECTIVES: To evaluate the chest radiographs of children diagnosed with non-severe pneumonia on the basis of the current World Health Organization guidelines (fast breathing alone) for radiological evidence of pneumonia. DESIGN: Descriptive analysis. SETTING: Outpatient departments of six hospitals in four cities in Pakistan. PARTICIPANTS: 2000 children with non-severe pneumonia were enrolled; 1932 children were selected for chest radiography. INTERVENTIONS: Two consultant radiologists used standardised WHO definitions to evaluate chest radiographs; no clinical information was made available to them. If they disagreed, the radiographs were read by a third radiologist; the final classification was based on agreement between two of the three radiologists. MAIN OUTCOME MEASURES: Presence or absence of pneumonia on radiographs. RESULTS: Chest radiographs were reported normal in 1519 children (82%). Radiological evidence of pneumonia was reported in only 263 (14%) children, most of whom had interstitial pneumonitis. Lobar consolidation was present in only 26 children. The duration of illness did not correlate significantly with the presence of radiological changes (relative risk 1.17, 95% confidence interval 0.91 to 1.49). CONCLUSION: Most children diagnosed with non-severe pneumonia on the basis of the current WHO definition had normal chest radiographs.

Bronchiolitis↗