Groove sign in eosinophilic fasciitis

• Peking Union Medical College Hospital, Dongcheng‐Qu, China

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• 1. Pinal‐Fernandez I, Selva‐O’ Callaghan A, Grau JM. Diagnosis and classification of eosinophilic fasciitis. Autoimmun Rev 2014; 13: 379‐382.
• 2. Mango RL, Bugdayli K, Crowson CS, et al. Baseline characteristics and long‐term outcomes of eosinophilic fasciitis in 89 patients seen at a single center over 20 years. Int J Rheum Dis 2020; 23: 233‐239.
• 3. Fruchter R, Mazori DR, Femia AN. Groove sign of eosinophilic fasciitis. J Clin Rheumatol 2017; 23: 169.