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Living with Familial cutaneous collagenoma

A rare inherited skin condition with several flesh-colored lumps on the back and upper arms, starting in the teen years.

Understanding Familial cutaneous collagenoma

Familial cutaneous collagenoma is an inherited skin condition with several flesh-colored lumps made of collagen.

The lumps do not cause symptoms and appear evenly on both sides of the trunk and upper arms, mainly the upper back. They appear around the teen years. Heart differences may be seen in some people.

Signs & symptoms

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

  • Several flesh-colored skin lumps
  • Small raised bumps (papules)
  • Changes in skin color
  • Lumps on the back and upper arms

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 genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
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
Should my heart be checked?
Do the lumps need treatment?
Could my children inherit this condition?

Quick facts

Symptoms usually startTeenager
InheritanceAutosomal Dominant

Changes in genes cause this condition. It is autosomal dominant, which means a change in one copy of the gene can cause it. GARD does not name the gene.

GeneticSkin

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Familial cutaneous collagenomaGARD ID 9799 · 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 cutaneous collagenoma.

Explore the Familial cutaneous collagenoma blog

Explore research for Familial cutaneous collagenoma

Explore actively recruiting Familial cutaneous collagenoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Familial cutaneous collagenoma 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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