Ekbom syndrome or delusional parasitosis is characterised by delusions, symptoms of formication and signs such as self-mutilation or the matchbox-sign
Restless legs syndrome (RLS)/Willis-Ekbom disease (WED) is characterized by an urge to move the legs, usually associated with limb discomfort. The symptoms occur at rest, are relieved by movement, and are worst in the evening and at night.
Karl-Axel Ekbom (1907-1977) Swedish neurologist. Eponym: Willis-Ekbom syndrome (Restless leg syndrome); Ekbom Syndrome II (Delusion of parasitosis)