Myalgia and cramps: dystrophinopathy with wide-ranging laboratory findings

We present 12 cases of males with myalgia and cramps and a normal muscle strength examination. All the patients had muscle dystrophin values consistent with Becker muscular dystrophy. Five of the patients had a normal electromyogram, and five had normal light microscopic muscle biopsy results. Of pa...

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Bibliographic Details
Published inJournal of child neurology Vol. 11; no. 1; p. 21
Main Authors Samaha, F J, Quinlan, J G
Format Journal Article
LanguageEnglish
Published United States 01.01.1996
Subjects
Adolescent
Adult
Age of Onset
Child
Creatine Kinase - blood
Dystrophin - analysis
Electromyography
Gene Deletion
Humans
Male
Medical Records
Middle Aged
Muscle, Skeletal - chemistry
Muscular Dystrophies - diagnosis
Retrospective Studies
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Summary:We present 12 cases of males with myalgia and cramps and a normal muscle strength examination. All the patients had muscle dystrophin values consistent with Becker muscular dystrophy. Five of the patients had a normal electromyogram, and five had normal light microscopic muscle biopsy results. Of particular note, four of the 12 patients had normal serum creatine kinase levels, and four others had only mild elevations (less than twice the upper limit of normal). These patients establish an identifiable dystrophinopathy of adolescent boys and young men that can present with muscle pain and, in some cases, normal routine laboratory evaluations.
ISSN:0883-0738
DOI:10.1177/088307389601100105