[The non-tropical pyomyositis--a rare disease in the moderate climate zone].

Pyomyositis is in the moderate climate zone a rare and acute bacterial infection of the skeletal muscles without an obvious origin of infection. Initial symptoms contain muscle pain and localized swelling and tension. As different causes are taken into account first, the diagnosis of a pyomyositis is often delayed. We report on three cases of pyomyositis and discuss diagnosis and therapy against the background of the available and recent literature.