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Adult Pulmonary Langerhans Cell Histiocytosis C3161104

Published: July 22, 2026Updated: August 20, 2026

A rare lung disease where immune cells accumulate and form cysts, primarily affecting young adults who smoke. Quitting smoking and medication can help manage symptoms and slow progression.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
J84.82
ICD-11
CA00.0
Body system
respiratory
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Chest pain

!

Pneumothorax

Cough

(respiratory)

Shortness of breath or cough

(respiratory)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Dyspnea

(respiratory)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Respiratory therapy and management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Smoking cessation

Complete elimination of tobacco use is the most critical intervention as smoking directly accelerates disease progression and lung damage.

lifestyle
3

Pulmonary function surveillance

Regular spirometry, high-resolution CT imaging, and exercise tolerance testing monitor disease activity and response to treatment.

monitoring

Additional treatment options

Cladribine chemotherapy

Systemic chemotherapy with cladribine targets proliferating Langerhans cells and is used for progressive or multisystem disease.

medication

Supplemental oxygen therapy

Home oxygen supplementation improves oxygenation and reduces dyspnea in patients with significant lung function impairment.

procedure

Pulmonary rehabilitation

Structured exercise training and breathing exercises improve lung capacity, reduce breathlessness, and enhance overall functional status.

physical_therapy

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Adult Pulmonary Langerhans Cell Histiocytosis C3161104?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Tazi A, Lorillon G, Haroche J, et al. Pulmonary Langerhans Cell Histiocytosis. Chest. 2020;158(4):1427-1435.

review2020
2

Vassallo R, Harari S, Goh N. Interstitial Lung Disease Guidelines: European Respiratory Society. Eur Respir J. 2021;57(6):2004367.

guideline2021
3

Roden AC, Yi ES. Pulmonary Langerhans Cell Histiocytosis: Analysis of 50 Patients. Am J Surg Pathol. 2019;43(8):1077-1084.

other2019
4

Gazdar A, Suster S. Histiocytic and Dendritic Cell Neoplasms of the Lung. Semin Diagn Pathol. 2022;39(2):89-102.

review2022

Medication Comparisons

Compare medications used to treat Adult Pulmonary Langerhans Cell Histiocytosis C3161104. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy