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Related Concept Videos

Asthma I: Introduction01:28

Asthma I: Introduction

16
Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
16
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

21
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...
21
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

20
Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
20
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

16
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
16
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations01:19

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

20
Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet...
20
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

5.0K
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
5.0K

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Related Experiment Video

Updated: Apr 20, 2026

Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis
03:23

Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis

Published on: May 10, 2024

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Eosinophilia with pulmonary infiltrates.

Peng Chen1, Ye Wang2, Fuqiang Wen2

  • 1Department of Respiratory Medicine, The Third People Hospital of Chengdu Chengdu, China.

Respirology Case Reports
|December 5, 2014
PubMed
Summary

Diagnosing lymphoma can be challenging, but eosinophilia, along with pulmonary infiltrates, may indicate the disease. This case highlights how these symptoms can mimic other conditions, complicating lymphoma diagnosis.

Keywords:
Alveolitiseosinophilialymphoma

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Area of Science:

  • Oncology
  • Pulmonology
  • Pathology

Background:

  • Lymphoma diagnosis often requires definitive pathologic evidence.
  • Eosinophilia can be an indicator of lymphoma, but its presence can be misleading.
  • Pulmonary infiltrates and response to prednisone may mimic other conditions, complicating diagnosis.

Purpose of the Study:

  • To report a challenging case of lymphoma.
  • To highlight the diagnostic complexities of lymphoma with concurrent eosinophilia and pulmonary infiltrates.
  • To emphasize the importance of considering lymphoma despite potentially misleading clinical features.

Main Methods:

  • Case report detailing a patient with lymphoma.
  • Clinical presentation analysis including eosinophilia and pulmonary infiltrates.
  • Review of diagnostic challenges and differential diagnoses.

Main Results:

  • The patient presented with clinical features suggestive of other conditions.
  • Lymphoma was diagnosed despite initial diagnostic challenges.
  • Eosinophilia and pulmonary infiltrates were key features in this case.

Conclusions:

  • Lymphoma diagnosis can be difficult, especially when presenting with atypical features like eosinophilia and pulmonary infiltrates.
  • Clinical features such as eosinophilia, pulmonary infiltrates, and response to prednisone can mimic other diseases, necessitating careful evaluation.
  • Pathologic confirmation remains crucial for accurate lymphoma diagnosis.