Hereditary benign telangiectasia: a congenital type.

Hereditary benign telangiectasia (HBT) is inherited in an autosomal dominant fashion, and in all the cases reported in the past it developed after birth. We describe 3 congenital cases of HBT in the same Japanese family: a 29-year-old father and his 5-month- and 2-year-old daughters have had scattered erythematous patches of various sizes in diameter since birth.