Ataxia-hypogonadism-choroidal dystrophy syndrome

What it is

A very rare autosomal recessive, slowly progressive neurodegenerative disorder characterized by the triad of cerebellar ataxia (that generally manifests at adolescence or early adulthood), chorioretinal dystrophy, which may have a later onset (up to the fifth-sixth decade) leading to variable degrees of visual impairment, and hypogonadotropic hypogonadism (delayed puberty and lack of secondary sex characteristics). Ataxia-hypogonadism-choroidal dystrophy syndrome belongs to a clinical continuum of neurodegenerative disorders along with the clinically overlapping cerebellar ataxia-hypogonadism syndrome.

Key facts

Age of onset

Childhood

Inheritance

Autosomal recessive

Classified as

Disease

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.

Gene

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