raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:97330

Thoracic outlet syndrome

Synonyms: TOS · Thoracic outlet compression syndrome

Type
Disease
Group
Disorder
Age of onset
Adult, Elderly
Status
active

Thoracic outlet syndrome (TOS) is a group of disorders characterized by paresthesias, pain and weakness of the upper extremities due to compression, tension or inflammation of the neurovascular bundle as it passes through the thoracic outlet. There are 3 forms of TOS with different clinical pictures and etiologies: neurogenic TOS (NTOS) that can be divided into true or disputed forms, arterial TOS (ATOS) and venous TOS (VTOS).

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enThoracic outlet syndromeTOS · Thoracic outlet compression syndrome
frSyndrome du défilé thoraciqueSDT · Syndrome de la traversée cervico-thoraco-brachiale · Syndrome du défilé cervico-thoraco-brachial · TOS
deThoracic-outlet-Syndrom
esSíndrome de la salida torácicaSST · TOS
itSindrome dello stretto toracicoTOS
nlThoracic outlet-syndroomThoracic outlet-compressiesyndroom · TOS
ptSíndrome do canal torácico
plZespół górnego otworu klatki piersiowejTOS · Zespół uciskowy górnego otworu klatki
csSyndrom horní hrudní aperturyTOS · Kompresivní syndrom horní hrudní apertury
ukСиндром грудного виходуСиндром здавлення грудного отвору легеневої артерії · TOS
zh胸廓出口综合征胸廓出口压迫综合征
trTorasik çıkış sendromuTOS · Torasik çıkış kompresyon sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G54.0NTBTinclusionvalidated
ICD-118B91.YNTBTindexvalidated
MONDO0005979Evalidated
MeSHD013901Evalidated
UMLSC0039984Evalidated
GARD7759Evalidated
MedDRA10048627Evalidated

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):

Children (3):

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

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

11 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003401Paresthesia
Frequent (79-30%)
HP:0000772Abnormal rib morphology
HP:0002829Arthralgia
HP:0000969Edema
HP:0001324Muscle weakness
HP:0003326Myalgia
Occasional (29-5%)
HP:0003457EMG abnormality
HP:0003394Muscle spasm
HP:0000763Sensory neuropathy
HP:0002619Varicose veins
HP:0004936Venous thrombosis

Run the differential on the 1 obligate / very frequent terms

Annotation source: 26251937[PMID]

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Sources for this card