raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:79138

Bickerstaff brainstem encephalitis

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

A rare autoimmune encephalitis/neuropathy characterized by disturbances of consciousness, ophthalmoplegia, ataxia, and hyperreflexia. It has common clinical features with Miller Fisher syndrome.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enBickerstaff brainstem encephalitis
frRhombencéphalite de BickerstaffRhombencéphalite postinfectieuse de Bickerstaff · Syndrome de Bickerstaff
deBickerstaff-EnzephalitisBickerstaff-Hirnstammenzephalitis
esEncefalitis troncoencefálica de Bickerstaff
itEncefalite troncoencefalica di Bickerstaff
nlBickerstaff-hersenstamencefalitis
ptEncefalite do tronco cerebral Bickerstaff
plZapalenie pnia mózgu Bickerstaffa
csBickerstaffova kmenová encefalitida
ukСтовбуровий енцефаліт Бікерстаффа
zhBickerstaff脑干脑炎
trBickerstaff beyin sapı ensefaliti

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10G61.0NTBTattributedvalidated
ICD-118C01.0NTBTindexvalidated
MONDO0019208Evalidated
UMLSC1960543Evalidated
MedDRA10076985Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

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.

6

HPO phenotypes

47 annotations · validated 2021-09-30
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001251Ataxia
HP:0007305CNS demyelination
HP:0001289Confusion
HP:0003431Decreased motor nerve conduction velocity
HP:0002329Drowsiness
HP:0003403EMG: decremental response of compound muscle action potential to repetitive nerve stimulation
HP:0000602Ophthalmoplegia
HP:0032169Severe infection
Frequent (79-30%)
HP:0007256Abnormal pyramidal sign
HP:0012696Abnormal thalamic MRI signal intensity
HP:0002270Abnormality of the autonomic nervous system
HP:0007131Acute demyelinating polyneuropathy
HP:0001284Areflexia
HP:0030057Autoimmune antibody positivity
HP:0000651Diplopia
HP:0012534Dysesthesia
HP:0002094Dyspnea
HP:0002353EEG abnormality
HP:0007209Facial paralysis
HP:0002922Increased CSF protein concentration
HP:0003690Limb muscle weakness
HP:0002090Pneumonia
HP:0011947Respiratory tract infection
Occasional (29-5%)
HP:0001291Abnormal cranial nerve morphology
HP:0000496Abnormality of eye movement
HP:0009916Anisocoria
HP:0003487Babinski sign
HP:0001348Brisk reflexes
HP:0001283Bulbar palsy
HP:0012229CSF pleocytosis
HP:0001259Coma
HP:0010628Facial palsy
HP:0012416Hypercapnia
HP:0100786Hypersomnia
HP:0010831Impaired proprioception
HP:0011499Mydriasis
HP:0000639Nystagmus
HP:0012531Pain
HP:0000508Ptosis
HP:0031123Recurrent gastroenteritis
HP:0001315Reduced tendon reflexes
HP:0002878Respiratory failure
HP:0004887Respiratory failure requiring assisted ventilation
HP:0010871Sensory ataxia
HP:0002273Tetraparesis
HP:0002445Tetraplegia
HP:0030319Weakness of facial musculature

Run the differential on the 8 obligate / very frequent terms

Annotation source: 32934014[PMID]_33378029[PMID]_32655484[PMID]

7

Sources for this card