Case for diagnosis
A 27 year-old-man with no known history of personal or familial illnesses was referred\nto our clinic with a 10 year history of cervical telangiectasias with no associated\nsymptoms. The patient denied any preceding or simultaneous episodes of disease with this\ndermatosis, as well as concomitant or recent use of any medication. We found no changes\non his physical exam, except the presence of groups of blancheable, erythematous\nmacules, of a bright red tone, with a Blaschko lines distribution and localized only on\nthe right lateral aspect of the neck (\nand ). Blood work did not reveal any changes,\nnamely in liver enzymes or infectious serologies. What is your diagnosis?