Related Experiment Video
Updated: Jun 14, 2026
04:44
Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Sarcoidosis: epidemiology and clinical features
Nicholas Jones1, Manabu Mochizuki
1The Royal Eye Hospital, Manchester, UK.
Ocular Immunology and Inflammation
|April 8, 2010
Summary
Sarcoidosis is a complex disease with varied presentations influenced by genetics and environment. This review details its epidemiology, systemic and ocular manifestations, and diagnostic insights.
Area of Science:
- Pulmonary Medicine
- Ophthalmology
- Genetics
Background:
- Sarcoidosis exhibits diverse clinical characteristics influenced by geographic location, ethnicity, and occupation.
- Familial sarcoidosis studies suggest a polygenic inheritance pattern with environmental triggers.
- Understanding sarcoidosis variability is crucial for accurate diagnosis and management.
Purpose of the Study:
- To review the epidemiology of sarcoidosis.
- To describe systemic involvement, including pulmonary staging and extrapulmonary manifestations like neurological disease.
- To detail the clinical characteristics of ocular sarcoidosis based on international consensus.
Main Methods:
- Literature review of sarcoidosis epidemiology.
- Analysis of systemic involvement patterns in sarcoidosis.
- Synthesis of findings from an International Workshop on ocular sarcoidosis.
Main Results:
- Sarcoidosis epidemiology varies significantly across different populations and environments.
- Neurological involvement is a notable extrapulmonary manifestation.
- Ocular sarcoidosis presents with diverse manifestations affecting all parts of the eye.
Conclusions:
- Sarcoidosis is a multi-system inflammatory disease with heterogeneous clinical phenotypes.
- Genetic and environmental factors play significant roles in its pathogenesis.
- Comprehensive understanding of sarcoidosis, including ocular and neurological involvement, is essential for effective patient care.
Related Concept Videos
01:20COPD: Pathogenesis and Clinical Features
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
01:26Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
01:28Infectious Diseases and Their Occurrence
Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
01:28Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
01:25Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
01:21Barrett Esophagus-II: Clinical Manifestations and Management
Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...