raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2561

Pyramidal molars-abnormal upper lip syndrome

historical

Synonyms: Ackerman fused molar roots syndrome

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

A rare multiple congenital anomalies/dysmorphic syndrome characterized by a variable combination of dental, cutaneous, ocular, and bone abnormalities, including pyramidal and fused molar roots, taurodontism, an abnormal upper lip without a cupid's bow and thickened and wide philtrum, juvenile glaucoma, syndactyly, and clinodactyly. There have been no further descriptions in the literature since 1973.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPyramidal molars-abnormal upper lip syndromeAckerman fused molar roots syndrome
frSyndrome de molaires pyramidales-lèvre supérieure anormaleSyndrome de molaires avec racines fusionnées d'Ackerman
dePyramidale Molare-Oberlippenanomalie-SyndromFusionierte Molarwurzel-Syndrom Ackerman
esSíndrome de molares piramidales-labio superior anómaloSíndrome de raíz molar fusionada de Ackerman
itSindrome molari piramidali-anomalie del labbro superioreMolare piramidale - glaucoma - anomalia del labbro superiore
nlPiramidale molaren - abnormale bovenlip-syndroomAckerman gefuseerde kieswortels-syndroom
ptSíndrome molar piramidal-anomalia do lábio superiorSíndrome raízes molares fundidas Ackerman
plZespół AckermanaPyramidal molar - jaskra - nieprawidłowa warga górna
csAckermanův syndromSyndrom zahrnující pyramidální molární glaukom a abnormální horní ret
ukСиндром пірамідальних молярів-аномальної верхньої губиСиндром зрощених коренів молярів Аккермана
zh锥状磨牙-上唇畸形综合征Ackerman磨牙牙根融合综合征
trPiramidal molarlar-anormal üst dudak sendromuAckerman kaynaşmış molar kök sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM200970Evalidated
ICD-10K00.2NTBTattributedvalidated
MONDO0008706Evalidated
MeSHC538170Evalidated
UMLSC1860167Evalidated
GARD469Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families8 casesWorldwideCase(s)Validated4349385[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_4349385[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

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

7

Sources for this card