raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:83452

Complex regional pain syndrome

Synonyms: Sudeck's atrophy · Causalgia · Reflex sympathetic dystrophy · Algodystrophy · Algoneurodystrophy

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

A rare neurologic disease characterized by persistent pain that is disproportionate to the inciting event. The pain is regional, usually affecting a limb with a distal predominance, and may occur spontaneously or be stimulus-induced. It is associated with sensory disturbances, vasomotor abnormalities (including changes in skin color and temperature), sudomotor abnormalities, edema, and motor or trophic changes. Symptoms often develop following trauma, fractures, immobilization, surgery, or nerve injury, and their severity and clinical presentation can vary considerably among patients.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enComplex regional pain syndromeSudeck's atrophy · Causalgia · Reflex sympathetic dystrophy · Algodystrophy · Algoneurodystrophy
frSyndrome douloureux régional complexeDystrophie sympathique réflexe · Algodystrophie · Algoneurodystrophie · Atrophie de Sudeck · Causalgie
deKomplexes regionales SchmerzsyndromKausalgie · Sudeck-Atrophie · CRPS
esSíndrome de dolor regional complejoAlgoneurodistrofia · Atrofia de Sudeck · Causalgia · Distrofia simpática refleja · Algodistrofia
itSindrome da dolore regionale complessoCausalgia · Distrofia simpatica riflessa · Algodistrofia · Atrofia di Sudeck · Algoneurodistrofia
nlComplex regionaal pijnsyndroomAtrofie van Sudeck · Sudeck-atrofie · Causalgie · Sympathische reflexdystrofie · Algodystrofie · Algoneurodystrofie · CRPS
ptSíndrome dor regional complexa
plZespół złożonego bólu miejscowego= en
csKomplexní regionální bolestivý syndromKRBS · Sudeckův syndrom
ukКомплексний регіональний больовий синдром
zh复杂性局部疼痛综合征
trKompleks bölgesel ağrı sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM604335BTNTvalidated
ICD-10G90.5BTNTattributedvalidated
ICD-10G90.6BTNTattributedvalidated
ICD-11MG30.04Especificvalidated
MONDO0019369Evalidated
MeSHD020918Evalidated
UMLSC0458219Evalidated
GARD4647Evalidated
MedDRA10064332Evalidated

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.

Codes that Orphanet moved or referred to this one:

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Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-5 / 10 00026.2 / 100 000NetherlandsValue and classValidated17084977[PMID]_24161450[PMID]
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET

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

12 annotations · validated 2018-09-17
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0009763Limb pain
Frequent (79-30%)
HP:0040170Abnormality of hair growth
HP:0012533Allodynia
HP:0000958Dry skin
HP:0012534Dysesthesia
HP:0010742Edema of the upper limbs
HP:0010783Erythema
HP:0004305Involuntary movements
HP:0010741Pedal edema
HP:0008383Slow-growing nails
HP:0003474Somatic sensory dysfunction
HP:0010834Trophic changes related to pain

Run the differential on the 1 obligate / very frequent terms

Annotation source: 10522900[PMID]

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Sources for this card