Population
A case with an uncommon phenotype of late-onset myopathy without episodic paralytic attacks within a family…
Design
Case_report
Authors
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Clinicians should consider channelopathies in atypical late-onset myopathy; extends phenotypic spectrum but hypothesis-generating.
Hypokalaemic periodic paralysis secondary to a CACNA1S gene mutation can present as late-onset myopathy without episodic paralytic attacks, highlighting significant intrafamilial phenotypic variation.
Chalissery et al. (2017) studied this question.
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