Finger hyperphalangy-toe anomalies-severe…

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Finger hyperphalangy-toe anomalies-severe pectus excavatum syndrome

ORPHA:369979Malformation syndrome

What it is

A rare, genetic, congenital limb malformation syndrome characterized by bilateral short broad thumbs, short deviated index fingers, clinodactyly of the fifth fingers, broad, valgus-deviated halluces and laterally-deviated, overlapping second toe, associated with severe pectus excavatum and craniofacial dysmorphism (including brachycephaly, low anterior hairline, flat supraorbital ridges, telecanthus, upslanting palpebral fissures, maxillary hypoplasia, posteriorly rotated ears, microsomia and micrognathia). Radiological findings include thumb, index, and middle finger hyperphalangy, with severe delta phalanxes in affected fingers and halluces.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Infancy, Neonatal
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

Q87.2filed under a broader ICD-10 category — shared with 60 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

MONDO 0018249UMLS C5190599

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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