raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2409

Lowry-MacLean syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
active

Lowry-MacLean syndrome is a very rare syndrome characterized by microcephaly, craniosynostosis, glaucoma, growth failure and visceral malformations.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLowry-MacLean syndrome
frSyndrome de Lowry-MacLean
deLowry-Maclean-Syndrom
esSíndrome de Lowry-MacLean
itSindrome di Lowry-Maclean
nlSyndroom van Lowry-MacLean
ptSíndrome Lowry-Maclean
plZespół Lowry'ego i MacLeana
csLowryho-MacLeanův syndromLowry-MacLeanův syndrom
ukСиндром Лоурі-Макліна
zhLowry-MacLean综合征
trLowry-MacLean sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM600252Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD2F.1YNTBTindexvalidated
MONDO0010851Evalidated
MeSHC537037Evalidated
UMLSC0796020Evalidated
GARD3300Evalidated

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 (4):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families3 casesWorldwideCase(s)Validated9415481[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_9415481[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

52 annotations · validated 2019-03-06
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0030680Abnormal cardiovascular system morphology
HP:0002012Abnormality of the abdominal organs
HP:0007370Aplasia/Hypoplasia of the corpus callosum
HP:0000175Cleft palate
HP:0000776Congenital diaphragmatic hernia
HP:0000444Convex nasal ridge
HP:0001363Craniosynostosis
HP:0000680Delayed eruption of primary teeth
HP:0001087Developmental glaucoma
HP:0000494Downslanted palpebral fissures
HP:0001510Growth delay
HP:0001511Intrauterine growth retardation
HP:0000369Low-set ears
HP:0000252Microcephaly
HP:0000520Proptosis
HP:0011344Severe global developmental delay
Occasional (29-5%)
HP:0000078Abnormality of the genital system
HP:0100538Abnormality of the supraorbital ridges
HP:0006695Atrioventricular canal defect
HP:0008689Bilateral cryptorchidism
HP:0000592Blue sclerae
HP:0000453Choanal atresia
HP:0001680Coarctation of aorta
HP:0007957Corneal opacity
HP:0004439Craniofacial dysostosis
HP:0025247Dermoid cyst
HP:0002714Downturned corners of mouth
HP:0000577Exotropia
HP:0004554Generalized hypertrichosis
HP:0001269Hemiparesis
HP:0000348High forehead
HP:0002705High, narrow palate
HP:0000238Hydrocephalus
HP:0000327Hypoplasia of the maxilla
HP:0000047Hypospadias
HP:0000023Inguinal hernia
HP:0000485Megalocornea
HP:0000347Micrognathia
HP:0005211Midgut malrotation
HP:0000938Osteopenia
HP:0000939Osteoporosis
HP:0002021Pyloric stenosis
HP:0000278Retrognathia
HP:0003194Short nasal bridge
HP:0003196Short nose
HP:0000954Single transverse palmar crease
HP:0000237Small anterior fontanelle
HP:0011087Talon cusp
HP:0000243Trigonocephaly
HP:0000572Visual loss
HP:0005442Widely patent coronal suture
Very rare (<4-1%)
HP:0001250Seizure

Annotation source: 9415481[PMID]_281275[PMID]_7856667[PMID]

7

Sources for this card