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Related Concept Videos

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
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MRI
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Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

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Related Experiment Video

Updated: Jun 26, 2026

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
08:05

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

Published on: December 19, 2020

Bronchiolitis: classification, computed tomographic and histopathologic features, and radiologic approach.

Eun-Young Kang1, Ok Hee Woo, Bong Kyung Shin

  • 1Department of Radiology, College of Medicine, Korea University, Korea University Guro Hospital, Seoul, Korea. keyrad@korea.ac.kr

Journal of Computer Assisted Tomography
|February 4, 2009
PubMed
Summary

Thin-section computed tomography (CT) aids in diagnosing various types of bronchiolitis, a key area in pulmonary medicine. Characteristic CT findings include nodules, ground-glass opacities, and mosaic perfusion patterns, aiding in identification.

Related Experiment Videos

Last Updated: Jun 26, 2026

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
08:05

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

Published on: December 19, 2020

Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Pathology

Background:

  • Bronchiolitis diagnosis and classification are crucial in pulmonary medicine.
  • Thin-section computed tomography (CT) has significantly advanced diagnostic capabilities.
  • Understanding the histopathologic subtypes of bronchiolitis is essential for accurate diagnosis.

Purpose of the Study:

  • To highlight the role of thin-section CT in diagnosing bronchiolitis.
  • To outline the histopathologic classifications of bronchiolitis.
  • To describe the characteristic thin-section CT patterns associated with various bronchiolitis types.

Main Methods:

  • Review of literature on thin-section CT findings in bronchiolitis.
  • Correlation of histopathologic classifications with imaging features.
  • Identification of key CT patterns: centrilobular nodules, ground-glass attenuation, consolidation, low attenuation, and mosaic perfusion.

Main Results:

  • Thin-section CT is instrumental in identifying bronchiolitis and its subtypes.
  • Bronchiolitis encompasses diverse histopathologic entities including cellular, diffuse pan-, follicular, respiratory, proliferative, constrictive, and mineral dust airway disease.
  • Characteristic CT patterns observed are centrilobular nodules/branching densities, ground-glass attenuation/consolidation, and low attenuation/mosaic perfusion.

Conclusions:

  • Thin-section CT provides characteristic findings for diagnosing bronchiolitis.
  • The 3 main CT patterns can represent various forms of bronchiolitis.
  • CT imaging is a valuable tool for the assessment of bronchiolitis in clinical practice.