Definition of Basal cell nevus syndrome:

Basal cell nevus syndrome is a group of defects passed down through families that involve the skin, nervous system, eyes, endocrine glands, and bones.

The condition causes an unusual facial appearance and a higher risk of skin cancers.

Causes, incidence, and risk factors:

Basal cell nevus syndrome is a rare genetic condition. The gene linked to the syndrome is passed down through families as an autosomal dominant trait. That means you will get the syndrome if either parent passes the gene down to you.