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Chronic Pharyngitis

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
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Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

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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...

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

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 cell...

Classification of Illness

Classification of Illness

The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
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Acute illness is severe and...

Common Respiratory Disorders

Common Respiratory Disorders

Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
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Chronic Inflammation: Introduction

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Related Experiment Video

Updated: Jul 14, 2026

Immunofluorescent Labeling in Nasal Mucosa Tissue Sections of Allergic Rhinitis Rats via Multicolor Immunoassay

Immunofluorescent Labeling in Nasal Mucosa Tissue Sections of Allergic Rhinitis Rats via Multicolor Immunoassay

Published on: September 22, 2023

Chronic rhinosinusitis patterns of illness.

Daniel L Hamilos¹

¹Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Clinical Allergy and Immunology

|May 31, 2007

Summary

Chronic rhinosinusitis (CRS) is a complex condition with various contributing factors. Identifying distinct clinical patterns in CRS without nasal polyps versus CRS with nasal polyps aids in understanding causes and guiding patient management.

Area of Science:

Otolaryngology
Immunology
Genetics

Background:

Chronic rhinosinusitis (CRS) is a multifactorial condition with genetic, infectious, immune, anatomic, allergic, and inflammatory influences.
Current diagnostic criteria rely on imprecise symptoms lacking specificity.
Distinct clinical patterns within CRS offer insights into underlying pathophysiology and aid management.

Purpose of the Study:

To delineate characteristic clinical patterns within chronic rhinosinusitis.
To provide a framework for clinical assessment and management of CRS patients.
To explore the multifactorial contributors to CRS pathophysiology.

Main Methods:

Analysis of clinical presentations and patient subgroups within CRS.
Identification of differentiating factors between CRS with and without nasal polyps (NP).

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Immunofluorescent Labeling in Nasal Mucosa Tissue Sections of Allergic Rhinitis Rats via Multicolor Immunoassay

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Published on: September 22, 2023

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice

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Review of genetic, infectious, immune, anatomic, allergic, and inflammatory components.

Main Results:

CRS without NP is associated with facial pain, headache, recurrent infections, immune defects, and osteomyelitis.
CRS with NP correlates with male gender, anosmia, prior sinus surgery, asthma, aspirin sensitivity, dust mite allergy, and allergic fungal rhinosinusitis (AFRS).

Conclusions:

Characteristic clinical patterns aid in understanding CRS heterogeneity.
Differentiating CRS subtypes informs targeted medical evaluation and treatment strategies.
Further chapters will detail pathophysiological factors and a stepwise management approach.