FasciitisFasciitis is an inflammation of the fascia, which is the connective tissue surrounding muscles, blood vessels and nerves.In particular, it often involves one of the following diseases: Necrotizing fasciitis Plantar fasciitis Ischemic fasciitis, classified by the World Health Organization, 2020, as a specific tumor form in the category of fibroblastic and myofibroblastic tumors. Eosinophilic fasciitis Paraneoplastic fasciitis