Leri pleonosteosis

What it is

Leri pleonosteosis is characterized by broadening and deformity of the thumbs and great toes in a valgus position (a 'spade-shaped' appearance), flexion contracture of the interphalangeal joints, generalized limitation of joint mobility, short stature, and often mongoloid facies. Additional malformations include genu recurvatum, enlargement of the posterior neural arches of the cervical vertebrae, and thickening of the palmar and forearm fasciae. A few multigenerational families have been reported so far. The disease is inherited in an autosomal dominant manner.

Key facts

Prevalence

<1 / 1 000 000 (Europe)

Age of onset

Infancy, Neonatal

Inheritance

Autosomal dominant

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.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

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.

Cross-references