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Folliculitis decalvans is a rare chronic inflammatory cicatricial alopecia of the scalp occurring in middle-aged adults and characterized by the development of alopecic patches with slowly centrifugal spread predominantly in the vertex and occipital area of the scalp, associated with perifollicular erythema, follicular pustules and hemorrhagic crusts.
Features include very common findings: Recurrent skin infections, Abnormal hair morphology, Patchy alopecia, and Scarring alopecia of scalp and others; and common findings: Scarring.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Skin | 4 | Recurrent skin infections, Patchy alopecia, Scarring alopecia of scalp |
Biomarker and diagnostic research for Quinquaud's folliculitis decalvans has been reported in the published literature.
Phenotype severity distribution: 6 very common features, 1 common feature.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for Quinquaud's folliculitis decalvans.
168 publications have been identified in PubMed for Quinquaud's folliculitis decalvans. Kisho has analyzed 77 by research type. Research spans Review / Meta-Analysis (38%), Case Report / Case Series (21%), and Other (13%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 29 | 38% |
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 5:34 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Quinquaud's folliculitis decalvans
Blood and immune system
1 |
Recurrent skin infections |
Patient case studies
16 |
21% |
Other research | 10 | 13% |
Disease patterns and progression | 10 | 13% |
Laboratory research | 5 | 6% |
Clinical study results | 3 | 4% |
Testing and diagnosis research | 2 | 3% |
New treatment approaches | 2 | 3% |
Vázquez-Gómez S (2026). [PMID: 41194317](https://pubmed.ncbi.nlm.nih.gov/41194317/). *Australas J Dermatol*. [Other]
Zorlu Ö (2026). [PMID: 41915583](https://pubmed.ncbi.nlm.nih.gov/41915583/). *Acta Dermatovenerol Alp Pannonica Adriat*. [Epidemiology / Natural History]
Shanmugakumar S (2026). [PMID: 41585834](https://pubmed.ncbi.nlm.nih.gov/41585834/). *Indian J Dermatol*. [Case Report / Case Series]
Baker NJ (2026). [PMID: 41925130](https://pubmed.ncbi.nlm.nih.gov/41925130/). *J Cutan Med Surg*. [Other]
Nutz MC (2026). [PMID: 41580902](https://pubmed.ncbi.nlm.nih.gov/41580902/). *J Dtsch Dermatol Ges*. [Basic Science / Preclinical]
Altınöz Güney C (2026). [PMID: 41447583](https://pubmed.ncbi.nlm.nih.gov/41447583/). *Cutan Ocul Toxicol*. [Epidemiology / Natural History]
Svara F (2026). [PMID: 42195390](https://pubmed.ncbi.nlm.nih.gov/42195390/). *Life (Basel)*. [Review / Meta-Analysis]
Traini DO (2026). [PMID: 41532173](https://pubmed.ncbi.nlm.nih.gov/41532173/). *Int J Dermatol*. [Gene Therapy / Novel Therapeutics]
Hill MA (2026). [PMID: 41713592](https://pubmed.ncbi.nlm.nih.gov/41713592/). *J Am Acad Dermatol*. [Epidemiology / Natural History]
Ramírez-Sánchez JA (2026). [PMID: 41664781](https://pubmed.ncbi.nlm.nih.gov/41664781/). *Cureus*. [Epidemiology / Natural History]