raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2429

Macrocephaly-spastic paraplegia-dysmorphism syndrome

Synonyms: Fryns macrocephaly

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Childhood
Status
active

Macrocephaly-spastic paraplegia-dysmorphism syndrome is a rare syndrome of multiple congenital anomalies characterized by macrocephaly (of post-natal onset) with large anterior fontanelle, progressive complex spastic paraplegia, dysmorphic facial features (broad and high forehead, deeply set eyes, short philtrum with thin upper lip, large mouth and prominent incisors), seizures, and intellectual deficit of varying severity. Inheritance appears to be autosomal recessive.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMacrocephaly-spastic paraplegia-dysmorphism syndromeFryns macrocephaly
frSyndrome de macrocéphalie-paraplégie spastique-dysmorphieMacrocéphalie de Fryns
deMakrozephalie-spastische Paraplegie-Dysmorphien-SyndromMakrozephalie Typ Fryns
esSíndrome de macrocefalia-paraplejía espástica-dismorfiaMacrocefalia de Fryns
itMacrocefalia - paraplegia spastica - dismorfismiMacrocefalia di Fryns
nlMacrocefalie - spastische paraplegie - dysmorfie-syndroomFryns-macrocefalie
ptSíndrome de macrocefalia-paraplegia espástica-dismorfiaMacrocefalia de Fryns
plMakrocefalia - paraplegia spastyczna - dysmorfizmMakrocefalia Frynsa
csSyndrom zahrnující makrocefalii, spastickou paraplegii a dysmorfismusFrynsova makrocefalie
ukСиндром макроцефалії-спастичної параплегії-дисморфізмуМакроцефалія Фрайнів
zh巨头畸型-痉挛性截瘫-畸形综合征Fryns巨头畸形
trMakrosefali-spastik parapleji-dismorfizm sendromuFryns makrosefali

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM600302Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0010858Evalidated
MeSHC563963Evalidated
UMLSC1838281Evalidated

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 (3):

No children.

4

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.

6

HPO phenotypes

24 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000337Broad forehead
HP:0001249Intellectual disability
HP:0000256Macrocephaly
HP:0001250Seizure
HP:0001257Spasticity
Frequent (79-30%)
HP:0000280Coarse facial features
HP:0000490Deeply set eye
HP:0000232Everted lower lip vermilion
HP:0001288Gait disturbance
HP:0000348High forehead
HP:0001347Hyperreflexia
HP:0000336Prominent supraorbital ridges
HP:0000322Short philtrum
HP:0000219Thin upper lip vermilion
HP:0001956Truncal obesity
HP:0000154Wide mouth
Occasional (29-5%)
HP:0002808Kyphosis
HP:0002162Low posterior hairline
HP:0000303Mandibular prognathia
HP:0002650Scoliosis
HP:0003196Short nose
HP:0000664Synophrys
HP:0000574Thick eyebrow
HP:0100874Thick hair

Run the differential on the 5 obligate / very frequent terms

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Sources for this card