Korean J Neuromuscul Disord.  2022 Jun;14(1):16-19. 10.46518/kjnmd.2022.14.1.16.

A Familial Case with Phenotypic Differences in a CAV3 Pathogenic Variant

Affiliations
  • 1Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Abstract

We reported an age 32 male with progressive proximal muscle weakness. The serum creatine kinase was 1,908 IU/L. The muscle biopsy from biceps brachii muscle showed nonspecific myopathic changes. The whole exome sequencing identified a heterozygous variant (c.296A>C) in CAV3. It was previously reported as a likely pathogenic variant. It was also detected in the male’s mother and brother. However, his mother and brother had only hyperCKemia without muscle weakness. Our case showed phenotypic heterogeneity in a family, with the same variant in CAV3.

Keyword

Caveolin 3; Muscular dystrophies; limb-girdle; Whole exome sequencing
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