RT Journal Article SR Electronic T1 Acute fulminant myoglobinuric polymyositis with picornavirus-like crystals. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 775 OP 781 DO 10.1136/jnnp.40.8.775 VO 40 IS 8 A1 Y Fukuyama A1 T Ando A1 J Yokota YR 1977 UL http://jnnp.bmj.com/content/40/8/775.abstract AB Myoglobinuria was found in an 11 month old girl suffering from fever, dyspnoea, and muscle hypotonia. Muscle biopsy showed focal degenerative necrosis of the muscle fibres. Electronmicroscopically, picornavirus-like crystals were demonstrated in the muscle fibres. These and other findings strongly suggest that she suffered from acute myositis with myoglobinuria probably caused by Coxsackie B6 virus infection. The causal relationship of viral infection (Coxsackie, influenza, or myxo-viruses) and acute or chronic polymyositis with or without myoglobinuria is discussed.