Ascher syndrome

What it is

A very rare syndrome characterized by a combination of blepharochalasis, double lip, and non-toxic thyroid enlargement (seen in 10-50% of cases), although the occurrence of all three signs at presentation is uncommon. Hypertrophy of the mucosal zone of the lip with persistence of the horizontal sulcus between cutaneous and mucosal zones gives an appearance of double lip, with the upper lip being frequently involved. Blepharochalasis, or episodic edema of eyelid, appears around puberty, is present in 80% of cases, is usually bilateral, and can rarely lead to vision impairment and other ocular complications. Most cases are sporadic, but familial cases (with a possible autosomal dominant inheritance) have also been reported.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Neonatal

Inheritance

Not applicable

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