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Start free with EleplanSymptomatic form of X-linked centronuclear myopathy in female carriers
ORPHA:604680Disease
Also called Symptomatic form of X-linked myotubular myopathy in female carriers · Symptomatic form of XLCNM in female carriers · Symptomatic form of XLMTM in female carriers
What it is
A rare centronuclear myopathy characterized by a variable severity of muscle weakness which is typically asymmetric with a limb-girdle pattern. Severity can range from skeletal asymmetry to loss of ambulation. Other manifestations may include respiratory muscle weakness, urinary incontinence, bulbar signs (facial weakness, limitation of extra-ocular movements, ophthalmoparesis, ptosis and dysarthria), or skeletal involvement (kyphoscoliosis, scoliosis, joint hyperlaxity, joint contractures of the lower extremities, foot deformities and hand and/or facial contractures). Many female carriers remain asymptomatic.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood, Infancy, Neonatal
- Classified as
- Disease
Recorded for the broader condition
- Inheritance
- Autosomal dominant, Autosomal recessive, X-linked recessiveCentronuclear myopathy
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Gene
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Benefit programs to look at
Programs whose eligibility touches the same ICD-10 categories. Eligibility is decided by the administering agency, never by this page.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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