Related Experiment Video
Updated: Mar 18, 2026

Primed Mycobacterial Uveitis PMU as a Model for Post-Infectious Uveitis
Published on: December 17, 2021
Infectious complication or exacerbation of granulomatosis with polyangiitis?
Anna Masiak1, Małgorzata Struk-Panfill2, Zbigniew Zdrojewski1
1Chair and Department of Internal Diseases, Connective Tissue Disease and Geriatrics, Medical University of Gdansk, Poland.
Abstract:
Granulomatosis with polyangiitis (GPA) is a primary, systemic small vessel vasculitis. The respiratory tract is typically involved in the course of the disease. Abnormalities on the chest radiograph are noted in more than 70% patients at some point during their disease history. In some clinical situations it is difficult to distinguish whether symptoms result from the underlying disease or are a symptom of infection. In these clinical situations, chest computed tomography (CT) can be very useful. We present a patient with GPA localized mainly in the respiratory tract with sudden deterioration of the general state and new abnormalities revealed in the CT of the chest.
Insights
Granulomatosis with polyangiitis (GPA) is a rare autoimmune disorder affecting small blood vessels. Chest CT scans are crucial for diagnosing respiratory complications in GPA patients experiencing sudden health declines.
Area of Science:
- Rheumatology
- Pulmonology
- Radiology
Background:
- Granulomatosis with polyangiitis (GPA) is a systemic small vessel vasculitis primarily affecting the respiratory tract.
- Over 70% of GPA patients exhibit chest radiograph abnormalities during their disease course.
- Differentiating GPA symptoms from infections can be clinically challenging.
Purpose of the Study:
- To highlight the utility of chest computed tomography (CT) in diagnosing respiratory complications of GPA.
- To present a case of GPA with respiratory localization and sudden deterioration.
Main Methods:
- Case report presentation.
- Review of clinical presentation and imaging findings.
- Utilized chest computed tomography (CT) for detailed thoracic evaluation.
Main Results:
- The patient presented with GPA localized to the respiratory tract.
- A sudden decline in general condition was observed.
- Chest CT revealed new abnormalities, aiding in diagnosis and management.
Conclusions:
- Chest CT is invaluable for diagnosing and managing respiratory involvement in GPA, especially during acute exacerbations.
- Early identification of new CT findings can guide treatment decisions in GPA patients.
Related Concept Videos
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Acute Pyelonephritis I: Introduction
Hypersensitivity Reactions: Immune-Complex Reactions
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Peripheral Artery Disease I: Introduction

