raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:454831

Acute radiation syndrome

Synonyms: Acute radiation sickness

Type
Particular clinical situation in a disease or syndrome
Group
Disorder
Inheritance
Not applicable
Age of onset
All ages
Status
active

A rare radiation-induced disorder resulting from whole body exposure to large doses of penetrating radiation (>0.7 Gray) within a very short period of time (usually minutes) and characterized by bone marrow syndrome with pancytopenia (mild symptoms of which may occur already at 0.3 Gray), gastrointestinal syndrome resulting in mostly fatal infection, dehydration, and electrolyte imbalance (occurring at doses >10 Gray), and cardiovascular/central nervous system syndrome with watery diarrhea, convulsions, coma, and death within three days of exposure (occurring at doses >50 Gray). The syndrome develops in four clinical stages (prodromal/latent/manifest illness/recovery or death) of variable duration.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAcute radiation syndromeAcute radiation sickness
frSyndrome d'irradiation aiguëMaladie des rayons aïgue
deAkutes StrahlensyndromAkute Strahlenkrankheit
esSíndrome de irradiación agudaEnfermedad de irradiación aguda
itSindrome acuta da irradiazioneMalattia acuta da irradiazione
nlAcuut stralingssyndroomAcute stralingsziekte
ptSíndrome agudo de radiação
plOstry zespół popromiennyOstra choroba popromienna
csAkutní syndrom z ozářeníAkutní radiační syndrom
ukГострий променевий синдромГостра променева хвороба
zh急性放射病综合征急性放射病
trAkut radyasyon sendromuAkut radyasyon hastalığı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10T66Especificvalidated
ICD-11NF00NTBTattributedvalidated
MONDO0033938Evalidated
MeSHD054508Evalidated
UMLSC0520799Evalidated

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 (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 000—EuropeClass onlyValidatedEuropean Medicines Agency 2018[OTHER]

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

24 annotations · validated 2023-02-10
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0004334Dermal atrophy
Frequent (79-30%)
HP:0001892Abnormal bleeding
HP:0002014Diarrhea
HP:0001945Fever
HP:0002315Headache
HP:0000953Hyperpigmentation of the skin
HP:0001010Hypopigmentation of the skin
HP:0001888Lymphopenia
HP:0001324Muscle weakness
HP:0040189Scaling skin
HP:0001009Telangiectasia
HP:0001873Thrombocytopenia
HP:0002013Vomiting
Occasional (29-5%)
HP:0000518Cataract
HP:0012378Fatigue
HP:0001913Granulocytopenia
HP:0000962Hyperkeratosis
HP:0002615Hypotension
HP:0011123Inflammatory abnormality of the skin
HP:0006515Interstitial pneumonitis
HP:0007185Loss of consciousness
HP:0001250Seizure
HP:0200042Skin ulcer
HP:0002321Vertigo

Run the differential on the 1 obligate / very frequent terms

Annotation source: 28650707[PMID]_18049222[PMID]_20445398[PMID]

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Sources for this card