What is the prevalence of Degos Disease?

Degos disease, also known as malignant atrophic papulosis, is an exceptionally rare vasculopathy with fewer than 200 cases reported in medical literature globally. Because of its extreme rarity and the high likelihood of misdiagnosis, accurate prevalence and incidence rates remain unknown, though it is classified as an ultra-rare disease.

What is the estimated prevalence of Degos disease?

There are no reliable population-based studies to determine the exact prevalence of Degos disease. It is widely considered an ultra-rare condition, with medical literature noting fewer than 200 documented cases worldwide since its original description in 1941. Because Degos disease can present with varied systemic symptoms that often mimic other autoimmune or connective tissue disorders, many experts believe the condition is significantly underdiagnosed or misdiagnosed, meaning the true number of individuals living with Degos disease is likely higher than reported.

Are there demographic patterns for Degos disease?

While data is limited due to the small sample size, clinical observations suggest the following trends regarding Degos disease:

• Age of Onset: Degos disease most commonly affects adults between the ages of 20 and 50, though cases have been documented in both children and the elderly.


• Gender Distribution: Early reports suggested a higher prevalence in males, but more recent reviews indicate a more balanced distribution between genders.


• Geographic/Ethnic Variation: No specific geographic or ethnic clusters have been identified; Degos disease appears to occur globally across all populations.

Why is gathering data on Degos disease so challenging?

The difficulty in tracking Degos disease stems from its clinical complexity. Patients often present to various specialists—including dermatologists, neurologists, or gastroenterologists—before a diagnosis is reached. At DiseaseMaps.org, we have observed this firsthand, as 18 people with Degos disease have joined our community to share their experiences. This community-driven data provides a vital, real-world perspective that complements formal medical literature, helping to bridge the gap in our understanding of this rare condition.

Next steps

• Consult with a rheumatologist or dermatologist experienced in rare systemic vasculopathies.


• Connect with the 18 members of the Degos disease community on DiseaseMaps.org to share experiences and coping strategies.


• Inquire with your physician about the latest clinical research or registries tracking rare vasculitis conditions.

Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment.

References

• Orphanet: Malignant atrophic papulosis (ORPHA:2580).


• NIH GARD (Genetic and Rare Diseases Information Center): Degos disease overview.


• OMIM (Online Mendelian Inheritance in Man): Malignant atrophic papulosis; MAP.


• PubMed/NCBI: Systematic reviews on systemic malignant atrophic papulosis.