Diagnosis relies on recognizing the hallmarks of A-T: progressive ataxia and telangiectasia. However, this may be difficult as ataxia symptoms do appear prior to telangiectasia symptoms by several years

Ataxia-telangiectasia (A-T) is a rare, genetic neurological disorder that progressively affects various systems in the body.

It's a rare neurological disorder.

The name is a combination of two recognized abnormalities: ataxia (lack of muscle control) and telangiectasia (abnormal dilatation of capillary vessels that often result in tumors and red skin lesions ).

Both males and females are equally affected by A-T.