Microtriplication 11q24.1 syndrome

What it is

Microtriplication 11q24.1 is an extremely rare partial autosomal tetrasomy, resulting from a partial triplication of the long arm of chromosome 11, characterized by intellectual disability (with severe verbal impairment), short stature with small extremities, keratoconus and distinctive facial features (round, course face, upward slanting palpebral fissures, mild synophris, large nose with thick ala nasi and triangular tip, large mouth with broad lips, short and smooth philtrum, large protruded chin, ears with adherent lobules). Additionally, patients are overweight and present hypercholesterolemia.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Childhood

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.

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