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Living with Lymphangiomyomatosis

A condition, found almost only in women, that affects the lungs, kidneys, and lymphatic system and forms cysts in the lungs.

Understanding Lymphangiomyomatosis

Lymphangioleiomyomatosis (LAM) is a condition that affects the lungs, the kidneys, and the lymphatic system.

It is found almost only in women, and signs usually appear in a woman's thirties. It can occur on its own (isolated or sporadic LAM) or as a feature of tuberous sclerosis complex. Abnormal muscle-like cells form lung cysts and replace normal lung tissue.

Signs & symptoms

Symptoms vary from person to person. GARD describes these:

  • Trouble breathing (dyspnea)
  • Chest pain
  • Cough, sometimes with blood
  • Repeated collapsed lung (pneumothorax)
  • Fluid around the lungs (chylothorax)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    The LAM Foundation may keep lists of experts for this condition.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Expert lists: The LAM Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with The LAM Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Do I have isolated LAM or LAM with tuberous sclerosis complex?
What should I know about a collapsed lung?
Which lung specialists have experience with LAM?

Quick facts

It often occurs as a feature of an inherited syndrome called tuberous sclerosis complex. When it occurs alone, it is called isolated or sporadic LAM.

Also known as: lam; lymphangioleiomyomatosis; lymphangioleiomyomatosis, somatic; tsc1-related lymphangioleiomyomatosis

Patient organizations

Source: NIH GARD · LymphangiomyomatosisGARD ID 24820 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Lymphangiomyomatosis.

Explore the Lymphangiomyomatosis blog

Explore research for Lymphangiomyomatosis

Explore actively recruiting Lymphangiomyomatosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Lymphangiomyomatosis with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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