raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:641385

PASS syndrome

Synonyms: Pyoderma gangrenosum-acne-hidradenitis suppurativa-ankylosing spondylitis syndrome

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adult
Status
active

A rare autoinflammatory syndrome characterized by a chronic-relapsing course of the combination of pyoderma gangrenosum, acne, hidradenitis suppurativa (which, in addition to axillae and inguinal folds, can be observed on upper and lower limbs, back, and buttocks, among others), and ankylosing spondylitis. Typical age of onset is adolescence to young adulthood, with the different signs and symptoms appearing simultaneously or subsequently.

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Names in Orphadata languages

10 of 12 languages
LangNameSynonyms
enPASS syndromePyoderma gangrenosum-acne-hidradenitis suppurativa-ankylosing spondylitis syndrome
frSyndrome PASSSyndrome de pyoderma gangrenosum-acné-hidradénite suppurée-spondylarthrite ankylosante
dePASS-SyndromPyoderma gangrenosum-Akne-Hidradenitis suppurativa-ankylosierende Spondylarthritis-Syndrom
esSíndrome PASSSíndrome de pioderma gangrenoso-acné-hidradenitis supurativa-espondilitis anquilosante
itSindrome PASSSindrome pioderma gangrenoso-acne- idrosadenite suppurativa-spondilite anchilosante
nlPASS-syndroomPyoderma gangrenosum - acne - hidradenitis suppurativa - ankyloserende spondylitis-syndroom
ptSíndrome PASSSíndrome de pioderma gangrenoso-acne-hidradenite supurativa-espondilite anquilosante
plZespół PASS= en
csPASS syndrom= en
ukСиндром PASSСиндром гангренозної піодермії - акне - гнійного гідраденіту - анкілозуючого спондиліту

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10L88NTBTattributedvalidated
ICD-11EB21NTBTattributedvalidated
MONDO0958256Evalidated
MONDO958256Evalidated
UMLSC5816788Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families16 casesWorldwideCase(s)Validated32942279[PMID]_ORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated32942279[PMID]_ORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

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HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

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Sources for this card