raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:363972

Noonan syndrome-like disorder with juvenile myelomonocytic leukemia

Synonyms: CBL syndrome · Noonan syndrome-like disorder with JMML

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

A rare, genetic, polymalformative syndrome characterized by a Noonan-like phenotype associated with increased risk of developing juvenile myelomonocytic leukemia (JMML). The Noonan-like (NS) phenotype includes dysmorphic facial features (i.e. high forehead, hypertelorism, downslanting palpebral fissures, ptosis, low-set ears, prominent philtrum and short neck with or without pterygium colli), developmental delay, hypotonia and small head circumference. It can be associated with congenital heart defects or cardiomyopathy, ectodermal anomalies, and short stature. The NS phenotype is subtle or even inapparent in a large proportion of subjects, but may occasionally be severe. Leukemia can be the only clinical manifestation of the syndrome.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNoonan syndrome-like disorder with juvenile myelomonocytic leukemiaCBL syndrome · Noonan syndrome-like disorder with JMML
frSyndrome Noonan-like avec leucémie myélomonocytaire juvénileSyndrome CBL
deNoonan-ähnliches Syndrom mit juveniler myelomonozytischer LeukämieCBL-Syndrom · Noonan-ähnliches Syndrom mit JMML
esTrastorno similar al síndrome de Noonan con leucemia mielomonocítica juvenilSíndrome CBL · Trastorno de síndrome de Noonan-like con leucemia mielomonocítica juvenil · Trastorno similar al síndrome de Noonan con LMMJ
itSindrome Noonan-simile con leucemia mielomonocitica giovanileDisturbo sindrome di Noonan-simile con JMML · Sindrome CBL
nlSyndroom van Noonan-achtige aandoening met juveniele myelomonocytaire leukemieCBL-syndroom · Syndroom van Noonan-achtige aandoening met JMML
ptDoença semelhante ao síndrome de Noonan com leucemia mielonocítica juvenil
plZaburzenie podobne do zespołu Noonan z młodzieńczą białaczką mielomonocytarnąCBL syndrome · Zaburzenie podobne do zespołu Noonan z JMML
csSyndrom Noonan-like s juvenilní myelomonocytární leukémiíCBL syndrom · Syndrom Noonan-like s JMML
ukНунан-подібний синдром при ювенільній мієломоноцитарній лейкеміїСиндром ХБР · Синдром, подібний до синдрому Нунана, при ЮММЛ
zh努南综合征样障碍伴幼年型慢性骨髓单核细胞性白血病努南综合征样障碍伴JMML
trJuvenil miyelomonositik lösemi ile seyreden Noonan sendromu benzeri bozuklukCBL sendromu · JMML ile Noonan sendromu benzeri bozukluk

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613563Evalidated
ICD-10C93.3BTNTattributedvalidated
ICD-112A42.YNTBTattributedvalidated
MONDO0013308Evalidated
UMLSC4016301Evalidated

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 (4):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CBLDisease-causing germline mutation(s) inAssessedHGNC:1541ENSG0000011039516536011q23.3Cbl proto-oncogene20543203[PMID]_20619386[PMID]
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Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card