Unilateral nevoid telangiectasia(UNT) is a rare disorder and is characterized by superficial telangiectatic lesions distributed along the dermatomes unilaterally and usually on the upper part of the body. It has been said to be related to increased estrogen receptors in the involved skin. The lesions may be congenital or acquired.Acquired cases are typically associated with physiologic conditions such as pregnancy, puberty, hormonal therapy or cirrhosis, but the condition is also described in alcoholism without cirrhosis, carcinoma metastatic to the liver, and in hepatitis C. We present two cases of UNT in a 26-year-old man with heavy alcoholism and in a puberta1 16-year-old girl.