Sarcoidosis

Overview

Sarcoidosis is an inflammatory condition in which groups of immune cells called granulomas form in different parts of the body. The lungs and lymph nodes in the chest are commonly affected, although sarcoidosis can also involve the skin, eyes, heart, liver, and other organs.

Sarcoidosis in Lungs may cause persistent cough, shortness of breath, chest discomfort, or reduced exercise tolerance.

Some people have mild disease that settles without specific treatment, while others develop persistent or progressive inflammation requiring long-term medical care. Chronic Sarcoidosis may affect lung function over time if significant inflammation or scarring develops.

At Sarvodaya Hospital, our pulmonology team provides comprehensive Sarcoidosis Treatment based on the organs involved, severity of inflammation, lung function, symptoms, and disease progression. Where appropriate, patients can also receive specialised assessment for interstitial lung disease and advanced respiratory care.

Symptoms of Sarcoidosis

• Persistent dry cough
• Shortness of breath
• Chest discomfort
• Wheezing
• Fatigue
• Reduced exercise tolerance
• Fever
• Night sweats
• Unexplained weight loss
• Swollen lymph nodes
• Skin changes or rashes
• Eye redness or vision-related symptoms
• Joint pain

Causes of Sarcoidosis

The exact cause of sarcoidosis is not fully understood. It appears to involve an abnormal immune response, potentially influenced by genetic and environmental factors.

• Abnormal Immune Response: The immune system becomes activated and forms granulomas in affected tissues.
• Genetic Susceptibility: Certain genetic factors may influence an individual's tendency to develop sarcoidosis.
• Environmental Factors: Exposure to certain environmental substances may contribute to the development of the condition in susceptible individuals, although no single environmental cause has been established.
• Infectious Triggers: Researchers have investigated possible infectious triggers, but no specific infection has been confirmed as the sole cause of sarcoidosis.

Diagnosis of Sarcoidosis

There is no single test that confirms every case of sarcoidosis. Diagnosis generally involves assessing symptoms, imaging findings, laboratory results, and, in selected cases, tissue sampling while excluding other conditions that can produce similar findings.

• Medical History and Clinical Examination : The pulmonologist reviews respiratory symptoms, general health, previous medical conditions, medication history, environmental exposures, and symptoms involving other organs.
• Chest X-Ray : A chest X-ray can identify enlarged lymph nodes or changes within the lungs that may suggest sarcoidosis.
• High-Resolution CT Scan : A high-resolution CT scan provides detailed images of the lungs and can help assess the extent and pattern of lung involvement.
• Pulmonary Function Tests : Lung function testing evaluates breathing capacity and helps determine whether sarcoidosis is affecting respiratory function.
• Blood Tests : Blood investigations may assess general health, inflammation, calcium levels, liver and kidney function, and other parameters depending on the clinical situation.
• Bronchoscopy : Bronchoscopy may be recommended in selected patients to examine the airways and obtain samples for further evaluation.

Treatment Options for Sarcoidosis

The approach to Sarcoidosis Treatment depends on the severity of disease, affected organs, symptoms, and risk of organ damage. Not everyone with sarcoidosis requires immediate treatment. Some patients may be monitored regularly when symptoms are mild and organ function remains stable.

• Observation and Regular Monitoring: Patients with mild or stable disease may be monitored through regular clinical assessments, lung function testing, and imaging when appropriate.
• Corticosteroid Therapy: Corticosteroids may be prescribed when sarcoidosis causes significant symptoms, progressive lung disease, or important involvement of other organs.
• Steroid-Sparing Medicines: Patients who require prolonged treatment or do not tolerate corticosteroids may be considered for other medicines that suppress or regulate immune activity.
• Treatment for Organ-Specific Disease: When sarcoidosis affects the eyes, heart, skin, nervous system, or other organs, treatment may involve appropriate specialist teams.

Benefits of Early Sarcoidosis Treatment

Timely evaluation and appropriate management can help protect affected organs and monitor disease progression.

• Controls Inflammation: Treatment can help reduce excessive immune-related inflammation when medical therapy is required.
• Protects Lung Function: Regular monitoring and timely treatment may help limit the impact of progressive pulmonary disease.
• Reduces Symptoms : Appropriate management can help reduce cough, breathlessness, fatigue, and reduced exercise tolerance.
• Detects Organ Involvement : Regular assessments can identify involvement of the eyes, heart, skin, or other organs that may require additional treatment.

Complications of Sarcoidosis

• Progressive lung scarring
• Reduced lung function
• Pulmonary hypertension
• Eye complications
• Heart rhythm problems
• Heart-related complications
• Kidney or calcium-related problems
• Persistent fatigue
• Recurrence of disease

When Should You See a Pulmonologist?

• Persistent dry cough
• Unexplained shortness of breath
• Reduced exercise tolerance
• Recurrent chest discomfort
• Abnormal chest imaging
• Unexplained enlarged lymph nodes
• Persistent fatigue with respiratory symptoms
• A previous diagnosis of sarcoidosis
• Worsening respiratory symptoms despite treatment

Prevention & Lifestyle Modifications

There is no guaranteed way to prevent sarcoidosis because its exact cause is not known. However, healthy habits can support respiratory health and overall well-being.

• Avoid Smoking : Avoid tobacco smoke and other respiratory irritants that can further affect lung health.
• Maintain Physical Activity : Appropriate physical activity can help maintain strength, mobility, and exercise capacity. Activity should be adjusted according to symptoms and lung function.
• Follow Medical Advice : Take prescribed medicines as directed and do not stop long-term treatment without medical guidance.
• Attend Regular Follow-Ups : Routine consultations help monitor lung function, symptoms, imaging findings, and treatment response.
• Maintain a Balanced Diet : A balanced diet supports general health during long-term disease management.

Pre- and Post-Treatment Care

Pre-Treatment

Evaluation may include:

• Pulmonology consultation
• Detailed medical history
• Respiratory examination
• Chest X-ray
• High-resolution CT scan
• Pulmonary function testing
• Blood investigations
• Bronchoscopy when indicated
• Biopsy when required
• Assessment for involvement of other organs

Post-Treatment

Long-term care may include:

• Taking prescribed medicines
• Regular pulmonary function testing
• Follow-up chest imaging when advised
• Monitoring treatment side effects
• Maintaining appropriate physical activity
• Avoiding smoking and respiratory irritants
• Following nutritional and lifestyle advice
• Attending scheduled pulmonology or ILD consultations
• Reporting worsening respiratory symptoms promptly

Reviewed & Updated On

Reviewed by Dr. Pankaj Chhabra Director & Head (Unit II)- Pulmonology & Sleep Medicine on 1-Sep-2026.