[Unilateral nevoid telangiectasia syndrome. Study of cutaneous estrogen receptors].

We present four observations of unilateral nevoid telangiectasia syndrome, pointing out its common cervicothoracic distribution and its relation with hyper-estrogenic conditions, both physiological (puberty, pregnancy, use of contraceptive pills), and pathologic (post-alcoholic hepatic cirrhosis). We also comment on its differential diagnosis with similar diseases. A study of estrogenic receptors in the affected skin was carried out, thus supplying further data for the ethiopathogenesis of the process.