A rare genetic skeletal muscle disease characterized by neonatal to childhood onset of slowly progressive muscle weakness and atrophy primarily affecting the lower limbs joint contractures kyphosis or lordosis of the spine lateral tongue atrophy and pes equinus. Progression to upper limb involvement facial weakness language impairment intellectual disability and behavioral abnormalities have been reported in addition. Muscle biopsy shows myopathic changes with increased fiber size variation internalized nuclei fiber atrophy as well as rod structures and core targetoid defects.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version October 2024
Newly diagnosed with
Kyphosis-lateral tongue atrophy-myofibrillar myopathy syndrome?
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Advocacy Organizations
Association Aux Pas du Coeur – Côte d’ivoire
Our organization wants to raise awareness and recognition of rare diseases in Ivory Coast. Our mission is to: Raise awareness and campaign to help with the diagnosis and free therapeutic care of patients. Request and/or contribute to actions relating to the training of the medical profession to be able to make a final diagnosis and ensure continuous monitoring of patients easily.
COMBINEDBrain Inc
COMBINEDBrain is a consortium for outcome measures and biomarkers for neurodevelopmental disorders. We are collaborating to cure rare, non-verbal brain disorders.
Moonshots for Unicorns
Curing single-gene disorders
Neuromuscular Disease Foundation
The Neuromuscular Disease Foundation's (NDF) mission is to enhance the quality of the lives of people living with GNE Myopathy (also known as HIBM) through advocacy, education, outreach, and funding clinical research focused on treatments and a cure.
Project CASK
VISION Project CASK believes in a world free of the life limitations and debilitating effects of CASK gene disorders. MISSION To accelerate breakthroughs in research to develop treatments and a cure for CASK gene disorders. VALUES Collaboration. Transparency. Urgency.
Syndromes Without A Name (SWAN) Australia
Provide information, support and advocacy to families caring for a child with an undiagnosed or rare genetic condition.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.