LAUSR

INTRODUCTION Reports of cutaneous reactions to COVID-19 vaccination are increasing as the scope of vaccination expands, and more data are available for study. For example, a recent review of 414 registry patients with dermatologic reactions following mRNA COVID-19 vaccination demonstrated that cutaneous eruptions often occurred in individuals without a dermatologic history and typically arose in the vaccinated arm within days. The same study also reported a female predominance of 90% in cutaneous reactions to COVID-19 vaccination. Adding to this body of evidence, we, herein, describe an eruption of lichen striatus occurring several days after COVID-19 vaccination in a middle-aged woman. Of note, there is 1 recently reported case of lichen planus that developed 48 hours following the receipt of the Pfizer vaccine in a patient with a history of successfully treated lichen planus. Our case, however, to our knowledge, is the first reported instance of lichen striatus following COVID-19 vaccination, with more profound implications on the pathogenesis of this dermatologic condition.