“…3,4 In this regard, the laboratory findings, particularly the autoantibody profile, may serve as a biomarker to differentiate between the two conditions. Accordingly, we recently described a subacute cutaneous lupus erythematosus (SCLE) presenting after Pfizer COVID-19 vaccination but serologically negative, 5 with no signs of recurrence nearly 2 years later. In a similar manner, drug-induced cases of dermatomyositis (DM) have been mostly reported to be characterized by pathognomic skin findings (85%) and negative serological markers.…”