A case of acquired port wine stain: an association with repeated sunburn?

Background Unlike congenital port wine stain (PWS), an acquired PWS is a rare vascular lesion that develops later in life. Although solar damage is associated with acquired PWS, there is no reported case of acquired PWS after sunburn in the literature. Methods We report a case of a 54-year-old man diagnosed with acquired PWS possibly caused by repeated sunburn. Results We recommended laser treatment to our patient; however, the patient did not chose to receive any treatment. Conclusions Our case demonstrates a possible rare occurrence of an acquired PWS after sunburn with larger lesions and more diffuse distribution. For this reason, our case differs from other acquired PWS cases.