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A rare autoinflammatory syndrome characterized by a chronic-relapsing course of the combination of pyogenic arthritis, pyoderma gangrenosum, acne, and hidradenitis suppurativa (which, in addition to axillae and inguinal folds, can be observed on the face, neck, scalp, back, and buttocks, among others). Typical age of onset is adolescence to young adulthood, with the different signs and symptoms appearing simultaneously or subsequently.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for PAPASH syndrome.
8 publications have been identified in PubMed for PAPASH syndrome. Research spans Case Report / Case Series (88%) and Review / Meta-Analysis (13%).
Shaked Y (2026). [PMID: 42211747](https://pubmed.ncbi.nlm.nih.gov/42211747/). *JAAD Case Rep*. [Case Report / Case Series]
Patel J (2025). [PMID: 41499625](https://pubmed.ncbi.nlm.nih.gov/41499625/). *WMJ : official publication of the State Medical Society of Wisconsin*. [Case Report / Case Series]
Tikka M (2025). [PMID: 40824161](https://pubmed.ncbi.nlm.nih.gov/40824161/). *Acta dermato-venereologica*. [Case Report / Case Series]
Analytis S (2025). [PMID: 41499626](https://pubmed.ncbi.nlm.nih.gov/41499626/). *WMJ : official publication of the State Medical Society of Wisconsin*. [Case Report / Case Series]
Shevtsova IN (2025). [PMID: 40309341](https://pubmed.ncbi.nlm.nih.gov/40309341/). *Case reports in rheumatology*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 11:11 AM UTC
European rare disease database
Common questions about PAPASH syndrome
Burke OM (2025). [PMID: 40543672](https://pubmed.ncbi.nlm.nih.gov/40543672/). *Journal of the American Academy of Dermatology*. [Review / Meta-Analysis]
Moltrasio C (2025). [PMID: 40243006](https://pubmed.ncbi.nlm.nih.gov/40243006/). *International journal of dermatology*. [Case Report / Case Series]
Ahmad A (2024). [PMID: 39006661](https://pubmed.ncbi.nlm.nih.gov/39006661/). *Cureus*. [Case Report / Case Series]