raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:480864

Recurrent metabolic encephalomyopathic crises-rhabdomyolysis-cardiac arrhythmia-intellectual disability syndrome

Synonyms: TANGO2-related metabolic encephalopathy-arrhythmia syndrome

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

Recurrent metabolic encephalomyopathic crises-rhabdomyolysis-cardiac arrhythmia-intellectual disability syndrome is a rare, genetic, neurodegenerative disease characterized by episodic metabolic encephalomyopathic crises (of variable frequency and severity which are frequently precipitated by an acute illness) which manifest with profound muscle weakness, ataxia, seizures, cardiac arrhythmias, rhabdomyolysis with myoglobinuria, elevated plasma creatine kinase, hypoglycemia, lactic acidosis, increased acylcarnitines and a disorientated or comatose state. Global developmental delay, intellectual disability and cortical, pyramidal and cerebellar signs develop with subsequent progressive neurodegeneration causing loss of expressive language and varying degrees of cerebral atrophy.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enRecurrent metabolic encephalomyopathic crises-rhabdomyolysis-cardiac arrhythmia-intellectual disability syndromeTANGO2-related metabolic encephalopathy-arrhythmia syndrome
frSyndrome de crises encéphalomyopathiques métaboliques récurrentes-rhabdomyolyse-arythmie cardiaque-déficience intellectuelleSyndrome d'encéphalopathie métabolique-arythmie associé à TANGO2
deRezidivierende metabolische enzephalomyopathische Krisen-Rhabdomyolyse-Herzrhythmusstörung-Intelligenzminderung-SyndromTANGO2-assoziierte metabolische Enzephalopathie-Arrhythmie-Syndrom
esSíndrome de crisis encefalomiopáticas metabólicas recurrentes-rabdomiólisis-arritmia cardíaca-discapacidad intelectualSíndrome de encefalopatía metabólica-arritmia asociado a TANGO2
itSindrome crisi encefalomiopatiche metaboliche ricorrenti-rabdomiolisi-aritmia cardiaca-disabilità intellettivaSindrome da encefalopatia metabolica e aritmia correlata a TANGO2
nlRecidiverende metabole encefalomyopathische crises - rhabdomyolyse - hartritmestoornis - intellectuele achterstand-syndroomTANGO2-gerelateerd metabole encefalopathie - aritmie-syndroom
ptSíndrome com crises encefalomiopáticas metabólicas recorrentes-rabdomiólise-arritmia cardíaca-perturbação do desenvolvimento intelectualSíndrome de arritmia-encefalopatia metabólica TANGO2-relacionada
plZespół nawracającego przełomu metabolicznego o charakterze encefalomiopatii, rabdomiolizy, arytmii serca i niepełnosprawności intelektualnej= en
csSyndrom zahrnující opakované metabolické encefalopatické krize, rhabdomyolýzu, srdeční arytmie a mentální retardaci= en
ukСиндром рецидивуючих метаболічних енцефаломіопатичних кризів-рабдоміолізу-серцевої аритмії-інтелектуальної недостатностіСиндром метаболічної енцефалопатії-аритмії, повязаний з TANGO2
zh复发性代谢性脑脊髓病-横纹肌溶解症-心脏心律不齐-智力障碍综合征= en
trTekrarlayan metabolik ensefalomiyopatik krizler-rabdomiyoliz-kardiyak aritmi-zihinsel yetersizlik sendromu= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616878Evalidated
ICD-10G31.8NTBTattributedvalidated
ICD-118E4YNTBTattributedvalidated
MONDO0018820Evalidated
UMLSC5567524Evalidated
GARD13423Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TANGO2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:25439ENSG0000018359761683022q11.21transport and golgi organization 2 homolog26805781[PMID]_26805782[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families24 casesWorldwideCase(s)Validated26805781[PMID]_26805782[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26805781[PMID]_26805782[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

51 annotations · validated 2020-01-07
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003115Abnormal EKG
HP:0003458EMG: myopathic abnormalities
HP:0003236Elevated circulating creatine kinase concentration
HP:0001263Global developmental delay
HP:0002151Increased circulating lactate concentration
HP:0001249Intellectual disability
HP:0002919Ketonuria
Frequent (79-30%)
HP:0002071Abnormality of extrapyramidal motor function
HP:0008942Acute rhabdomyolysis
HP:0011675Arrhythmia
HP:0001251Ataxia
HP:0008223Compensated hypothyroidism
HP:0031936Delayed ability to walk
HP:0000750Delayed speech and language development
HP:0002376Developmental regression
HP:0002910Elevated circulating hepatic transaminase concentration
HP:0008872Feeding difficulties in infancy
HP:0002579Gastrointestinal dysmotility
HP:0002283Global brain atrophy
HP:0001987Hyperammonemia
HP:0001943Hypoglycemia
HP:0002311Incoordination
HP:0004305Involuntary movements
HP:0003128Lactic acidosis
HP:0011343Moderate global developmental delay
HP:0001657Prolonged QT interval
HP:0001250Seizure
Occasional (29-5%)
HP:0000646Amblyopia
HP:0003487Babinski sign
HP:0002069Bilateral tonic-clonic seizure
HP:0100704Cerebral visual impairment
HP:0002169Clonus
HP:0002015Dysphagia
HP:0001332Dystonia
HP:0045045Elevated plasma acylcarnitine levels
HP:0002384Focal impaired awareness seizure
HP:0002123Generalized myoclonic seizure
HP:0010818Generalized tonic seizure
HP:0001347Hyperreflexia
HP:0001276Hypertonia
HP:0002173Hypoglycemic seizures
HP:0012469Infantile spasms
HP:0011342Mild global developmental delay
HP:0031165Multifocal seizures
HP:0000639Nystagmus
HP:0000648Optic atrophy
HP:0011344Severe global developmental delay
HP:0001297Stroke
HP:0000605Supranuclear gaze palsy
Very rare (<4-1%)
HP:0000252Microcephaly
HP:0000407Sensorineural hearing impairment

Run the differential on the 7 obligate / very frequent terms

Annotation source: 29369572[PMID]_30245509[PMID]_31339582[PMID]_26805782[PMID]_26805781[PMID]

7

Sources for this card