Related Experiment Video
Updated: Jun 27, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
[The infectious complications of sarcoidosis]
Robin Dhote1, Sébastien Abad, Dominique Valeyre
1Service de Médecine Interne, Hôpital Avicenne, UPRES EA 3409, Université Paris XIII, Bobigny, France. robin.dhote@avc.aphp.fr
Abstract:
In large cohort studies, infectious complications are rarely observed in the course of sarcoidosis. Only small series or cases reports of infection are described in sarcoidosis. Most of cases are represented by opportunistic infection: cryptococcosis, pneumocystis, nocardiosis, histoplasmosis. Corticosteroids-induced immune suppression, and T-CD4 lymphopenia, are often present in these cases of infection, but are not the only factors.
Insights
Infectious complications are rare in sarcoidosis patients, with opportunistic infections like cryptococcosis being most common. While immune suppression from corticosteroids and T-cell depletion contribute, they aren
Area of Science:
- Pulmonology
- Infectious Diseases
- Immunology
Background:
- Infectious complications are infrequently documented in large sarcoidosis cohort studies.
- Case reports and small series highlight infections in sarcoidosis patients, often opportunistic.
- Common opportunistic infections include cryptococcosis, pneumocystis, nocardiosis, and histoplasmosis.
Purpose of the Study:
- To review the occurrence and types of infectious complications in sarcoidosis.
- To identify factors contributing to infection risk in sarcoidosis patients.
Main Methods:
- Review of existing literature and case reports on sarcoidosis and infections.
- Analysis of common infectious agents and associated patient factors.
Main Results:
- Opportunistic infections are the predominant type of infection observed in sarcoidosis.
- Corticosteroid-induced immunosuppression and T-CD4 lymphopenia are frequently noted.
- These immune factors are not the sole determinants of infection development.
Conclusions:
- Infections, particularly opportunistic ones, are rare but significant in sarcoidosis.
- Immune dysregulation in sarcoidosis, including corticosteroid effects, predisposes patients to infection.
- Further research is needed to fully elucidate the multifactorial nature of infection risk in sarcoidosis.
Related Concept Videos
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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...
Rocky Mountain Spotted Fever
Rheumatic Heart Disease I: Introduction
Tuberculosis
Respiratory Syncytial Virus Disease