LAUSR

Lipoatrophia semicircularis (LS) is an uncommon disorder characterized by semicircular or band-like depressions of the skin, most often localized on the lower limbs. This condition shows a female preponderance, with a median age at the time of occurrence around 40 years ( Presta et al., 2016 ). The main cause is chronic pressure applied during repetitive movements or static positions held for a prolonged time, generally resulting from workplace exposure ( Hermans et al., 1999 ; Nagore et al., 1998 ; Perez et al., 2010 ). LS is usually an asymptomatic condition, and its diagnosis is based on clinical examination. Shortly after the end of the first lockdown related to COVID19 pandemic in Italy, a 20-year-old woman, a young actress, presented to our department with a 2-month history of bilateral, linear depressions on the anterior aspect of the thighs ( Fig. 1 A). The skin overlying the affected area showed no signs of inflammation. The patient did not report any comorbidities and denied a recent history of trauma. Moreover, she did not hold a desk job. Given the clinical suspicion of LS, we asked the patient if she had a history of prolonged or repeated pressure on both thighs. She told us that, since the closing of the gym, she had started an intense home workout regimen using elastic bands for resistance ( Fig. 1 B). High-frequency longitudinal sonography showed reduced thickness of subcutaneous tissue in the affected area, with a slightly increased echogenicity due to a greater fibrotic component. For com-