Related Experiment Video
Updated: Oct 5, 2025
Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
Published on: February 23, 2014
Pneumonia in the Immunocompromised Host
Sowmiya Murali1, Aaron Marks1, Allen Heeger2
1University of New Mexico Hospital, Department of Radiology, Albuquerque, NM.
Abstract:
Pneumonia in the immunocompromised host can be devastating and can result from both common and opportunistic organisms. This paper examines the imaging findings in mostly opportunistic organisms which cause pneumonia in the immunocompromised host. Some organisms, such as tuberculosis, non-tuberculous mycobacteria, and influenza will also be discussed because although they are not specifically opportunistic, they can result in extensive and devastating disease in immunocompromised patients. It is important for the radiologist to recognize unique imaging findings in pneumonia in the immunocompromised patient and raise the possibility of certain organisms to direct appropriate therapy.
Insights
Pneumonia in immunocompromised patients can be severe. This review highlights key imaging findings for opportunistic infections and other pathogens, aiding radiologists in diagnosis and treatment.
Area of Science:
- Radiology
- Infectious Diseases
- Immunocompromised Host
Background:
- Pneumonia poses a significant threat to immunocompromised individuals.
- Infections can stem from common or opportunistic pathogens.
- Prompt diagnosis is crucial for effective management.
Purpose of the Study:
- To review imaging findings of pneumonia in immunocompromised patients.
- To focus on opportunistic organisms causing pneumonia.
- To include non-opportunistic pathogens causing severe disease in this population.
Main Methods:
- Review of imaging findings in immunocompromised patients with pneumonia.
- Emphasis on characteristic patterns associated with various pathogens.
- Discussion of opportunistic and selected non-opportunistic organisms.
Main Results:
- Opportunistic organisms present unique imaging signatures.
- Certain pathogens like tuberculosis and influenza can cause severe pneumonia in this group.
- Radiologists play a key role in identifying causative agents through imaging.
Conclusions:
- Recognizing specific imaging findings is vital for diagnosing pneumonia in immunocompromised hosts.
- Identifying potential organisms aids in directing appropriate and timely therapy.
- Radiological interpretation is critical for patient outcomes.
More Related Videos
09:17A Robust Pneumonia Model in Immunocompetent Rodents to Evaluate Antibacterial Efficacy against S. pneumoniae, H. influenzae, K. pneumoniae, P. aeruginosa or A. baumannii
Published on: January 2, 2017
12:21A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness
Published on: September 28, 2022
Related Concept Videos
01:30Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
01:30Pneumonia V: Nursing management and Prevention
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed....
01:29Pneumonia II: Pathophysiology
01:30Pneumonia III: Complications and Assessment
01:28Pneumonia IV: Management
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
01:25Transmission-based Precautions II: Airborne and Protective Environment
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...