RYR1-related central core myopathy in a Chinese adolescent boy.

B Chan, S P L Chen, W C Wong, C M Mak, S Wong, K Y Chan, A Y W Chan

Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Laichikok, Kowloon, Hong Kong.

Hong Kong medical journal = Xianggang yi xue za zhi / Hong Kong Academy of Medicine 2011 Feb

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Central core myopathy is a rare, inherited neuromuscular disorder with a wide spectrum of phenotypic presentations. It is also considered an allelic disease of malignant hyperthermia. We report a case of central core myopathy in a Chinese adolescent boy presenting with atypical clinical features and a moderately elevated serum creatine kinase level. The diagnosis was made from the histopathological findings of central cores on muscle biopsy, and confirmed by the molecular genetic testing for the RYR1 gene mutation. This is the first case of central core myopathy confirmed by molecular study in our locality.

Citation

B Chan, S P L Chen, W C Wong, C M Mak, S Wong, K Y Chan, A Y W Chan. RYR1-related central core myopathy in a Chinese adolescent boy. Hong Kong medical journal = Xianggang yi xue za zhi / Hong Kong Academy of Medicine. 2011 Feb;17(1):67-70