raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:566175

Complement hyperactivation-angiopathic thrombosis-protein-losing enteropathy syndrome

Synonyms: CD55 deficiency · CHAPLE syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Childhood, Infancy
Status
active

A rare genetic disease characterized by CD55 deficiency with complement hyperactivation, angiopathic thrombosis, and protein-losing enteropathy with abdominal pain, diarrhea, vomiting, primary intestinal lymphangiectasia, hypoproteinemic edema, and malabsorption, leading to anemia and growth delay. Bowel inflammation and recurrent infections associated with hypogammaglobulinemia may also be observed.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enComplement hyperactivation-angiopathic thrombosis-protein-losing enteropathy syndromeCD55 deficiency · CHAPLE syndrome
frSyndrome d'hyperactivation du complément-thrombose-entéropathie avec perte de protéinesDéficit en CD55 · Syndrome CHAPLE
deKomplement-Hyperaktivierung-angiopathische Thrombose-Eiweißverlustenteropathie-SyndromCD55-Defizienz · CHAPLE-Syndrom
esSíndrome de hiperactivación del complemento-trombosis angiopática-enteropatía perdedora de proteínasDeficiencia de CD55 · Síndrome CHAPLE
itSindrome da iperattivazione del complemento, trombosi angiopatica, enteropatia con perdita di proteineDeficit di CD55 · Sindrome CHAPLE
nlHyperactivatie van complementsysteem - angiopathische trombose - proteïneverliezende enteropathie-syndroomCD55-deficiëntie · CHAPLE-syndroom
ptSíndrome de hiperactivação do complemento-trombose angiopática-enteropatia com perda de proteínaDeficiência de CD55 · Síndrome CHAPLE
plZespół hiperaktywacji dopełniacza, zakrzepicy angiopatycznej i enteropatii z utratą białkaNiedobór dopełniacza D55 · Zespół CHAPLE
csSyndrom zahrnující hyperaktivaci komplementu, angiopatickou trombózu, ztrátu bílkovin a enteropatii= en
ukСиндром гіперактивації комплементу - ангіопатичний тромбоз - ентеропатія з втратою білкаДефіцит CD55 · Синдром CHAPLE
zh补体过度激活-血管病性血栓形成-蛋白丢失性肠病综合征CHAPLE syndrome
trTamamlayıcı hiperaktivasyon-anjiyopatik tromboz-protein kaybeden enteropati sendromuCD55 eksikliği · CHAPLE sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM226300Evalidated
ICD-10D84.1NTBTattributedvalidated
ICD-11DA96.YNTBTattributedvalidated
UMLSC4538570Evalidated
MedDRA10085728Evalidated

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

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CD55Disease-causing germline mutation(s) inAssessedHGNC:2665ENSG000001963521252401q32.2CD55 molecule (Cromer blood group)30565236[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_30565236[PMID]_28657829[PMID]_28657861[PMID]

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

6

HPO phenotypes

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

7

Sources for this card