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Living with Paraneoplastic pemphigus

A rare autoimmune skin and mouth condition with painful blisters and sores, usually linked to a lymphoma or leukemia.

Understanding Paraneoplastic pemphigus

Paraneoplastic pemphigus is a rare autoimmune skin disease with blistering that often starts in the mouth.

The immune system attacks the skin and moist linings of the body, causing many different kinds of skin changes. It generally goes along with a lymphoma or chronic lymphoid leukemia. It can occur at any age.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Blisters on the skin
  • Blisters in the mouth
  • Mouth sores (ulcers)
  • Skin erosions
  • Lymphoma (a cancer of immune cells)
  • Thymoma (a tumor of the thymus gland)

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

    Specialists who may be involved include skin, hair, and nail specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Global Autoimmune Institute may keep lists of experts for this condition.

Care & treatment

Care team
Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: Global Autoimmune Institute
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 Global Autoimmune Institute and other patient organizations
  • 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
Which tests can find a related lymphoma or leukemia?
How can we treat the mouth and skin sores?
Which specialists, such as skin and blood doctors, should be on my team?

Quick facts

Symptoms usually startany time in life

GARD says this condition is autoimmune, which means the immune system attacks the body's own tissue. It is generally linked to lymphoma or chronic lymphoid leukemia.

Skin

Patient organizations

Source: NIH GARD · Paraneoplastic pemphigusGARD ID 18858 · 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 Paraneoplastic pemphigus.

Explore the Paraneoplastic pemphigus blog

Explore research for Paraneoplastic pemphigus

Explore actively recruiting Paraneoplastic pemphigus studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Paraneoplastic pemphigus 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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