Ataxia-Telangiectasia - Patients develop telangiectasias on the bulbar conjunctiva, ear pinna, and nose several years after the development of ataxia (around 3 to 5 years of age). Of note, patients with Ataxia-Telangiectasia-Like syndrome have radiation sensitivity but do not develop cutaneous telangiectasias.



Bloom Syndrome


Bloom syndrome - Patients develop telangiectatic erythema on sun exposed areas of the face (similar to a butterfly rash seen in SLE) which can be bright red and disfiguring in extreme cases. Patients can also develop patchy areas of hypopigmentation or hyperpigmentation, especially on the trunk.