Pyramidal molars-abnormal upper lip…

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Pyramidal molars-abnormal upper lip syndrome

ORPHA:2561Malformation syndrome

Also called Ackerman fused molar roots syndrome

What it is

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.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Childhood
Inheritance
Autosomal recessive
Classified as
Malformation syndrome

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

ICD-10 codes

K00.2filed under a broader ICD-10 category — shared with 2 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

GARD 469MESH C538170MONDO 0008706OMIM 200970UMLS C1860167

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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