Skip to content
knowrare
HealthSignal
Your condition community

Living with Tempi syndrome

A newly described adult condition with visible small blood vessels, high red blood cells, and low blood oxygen.

Understanding Tempi syndrome

TEMPI syndrome is a newly described multisystem condition named for five features that people with it have.

TEMPI stands for Telangiectasias, Erythrocytosis with high erythropoietin, Monoclonal gammopathy, Perinephric fluid collections (fluid around the kidney), and Intrapulmonary shunting. Signs appeared in mid-adulthood in all known cases. The lung shunt lowers oxygen, which slowly worsens until continuous extra oxygen is needed. Blood clots and brain bleeding have been reported in some.

Signs & symptoms

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

  • Small red blood vessels on the skin (telangiectasias)
  • High red blood cell count
  • Low blood oxygen
  • Fluid around the kidney
  • Blood clots
  • Bleeding in the brain (some people)

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 autoimmune and inflammatory disease specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 rare disease patient organizations for support
  • 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
How can my oxygen levels be monitored at home?
How do we check for blood clots and bleeding risks?
Is there a specialist center that follows TEMPI?

Quick facts

Symptoms usually startAdult

GARD says the cause is currently unknown.

Also known as: telangiectasia-erythrocytosis-monoclonal gammopathy-perinephric-fluid collections-intrapulmonary shunting syndrome; telangiectasia, erythrocytosis, monoclonal gammopathy, perinephric fluid collections and intrapulmonary shunting syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Tempi syndromeGARD ID 10962 · 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 Tempi syndrome.

Explore the Tempi syndrome blog

Explore research for Tempi syndrome

Explore actively recruiting Tempi syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Tempi syndrome 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

Powered by HealthSpark, our AI chat helper

I can help you find recruiting Tempi syndrome studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

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

Get Signals for Tempi syndrome

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor Tempi syndrome

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Tempi syndrome experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.