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Living with Familial tumoral calcinosis

A condition with hard calcium lumps near joints such as the hip, elbow and ankle, mostly in younger people.

Understanding Familial tumoral calcinosis

Familial tumoral calcinosis is a condition of calcium and phosphate balance with hard, calcified lumps near large joints.

The lumps are in the tissue near the hip, elbow, ankle and shoulder blade, without joint involvement. They often occur in younger people. It is listed as starting in childhood.

Signs & symptoms

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

  • Firm lumps under the skin near joints
  • Bone pain
  • Bone overgrowth
  • Calcium in muscles
  • Red skin
  • Skin rash

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 bone and joint specialists, cancer specialists, genetic specialists and hormone specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Cancer specialists (oncologists); Genetic specialists (geneticists); Hormone specialists (endocrinologists)
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 Children's Skin Disease 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
Which blood tests check my calcium and phosphate balance?
What are the options for the lumps?
Is genetic testing available for my family?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Recessive

Changes in genes cause it. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticEndocrineSkin

Also known as: tumoral calcinosis

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Familial tumoral calcinosisGARD ID 10877 · 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 Familial tumoral calcinosis.

Explore the Familial tumoral calcinosis blog

Explore research for Familial tumoral calcinosis

Explore actively recruiting Familial tumoral calcinosis studies with HealthSpark.

HealthSpark

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  • 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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