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This book presents the word myogelosen, which means congealed muscle. The book is an interesting exposition of a condition heretofore grouped under the terms myositis, fibrositis, myofibrositis and myofascitis. The clinical picture of the muscle hardenings or myogeloses has been recognized for ten years. The origin dates from the work of Schade and Fritz Lange in 1921. When this condition becomes more generally known, it will no longer be diagnosed as neuralgia or neuritis. Many rheumatic patients suffer from muscle pains due to demonstrable hardenings or areas of myogelosis. The myogeloses occur in acute and chronic rheumatism, infectious diseases, and after muscular overexertion, trauma, strain and exposure to cold. Histologic examinations of the areas of hardening reveal no microscopic muscle changes. The author, therefore, ascribes myogelosis to a change in the colloid state of the muscle protoplasm, produced by chemical changes. These are an increase of lactic acid and reduction
Die Muskelhärten (Myogelosen), ihre Entstehung und Heilung. JAMA. 1931;97(1):52. doi:10.1001/jama.1931.02730010056031
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