Trilateral Blaschkoid linear lichen planus associated with COVID-19 vaccination

Reported cases of linear lichen planus following multiple Blaschko’s lines are rare. Herein, we present a middle-aged female patient who had unilateral lesions of linear lichen planus that followed Blaschko’s lines in three different sites of the body. The only history given was previous triple immunization against COVID-19 with the Pfizer vaccine and backache with right-sided trochanteric pain over the past year. Interestingly enough, during the diagnostic process, raised serum angiotensin-converting enzyme (SACE) was revealed along with signs of sacroiliitis and trochanteric bursitis. Key words: Linear lichen planus, Blaschko lines, SACE, COVID-19 immunization