Charcot-Marie-Tooth disease type 4D

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Synonyms: CMT4D | HMSN, Lom type | HMSN-Lom | Hereditary motor and sensory neuropathy, Lom type

Charcot-Marie-Tooth disease type 4D (CMT4D) is a subtype of Charcot-Marie-Tooth disease type 4 characterized by a childhood-onset of severe progressive demyelinating sensorimotor neuropathy manifesting with distal muscle weakness and atrophy sensorineural hearing impairment leading to deafness (usually in third decade) severely reduced nerve conduction velocities and skeletal especially foot deformities. Tongue atrophy has also been reported.

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 July 2024

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Charcot-Marie-Tooth disease type 4D?

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Advocacy Organizations

Hereditary Neuropathy Foundation

Hereditary Neuropathy Foundation (HNF) is a non-profit 501(c)3 organization which mission is to increase awareness and accurate diagnosis of Charcot-Marie-Tooth (CMT) and related inherited neuropathies, support patients and families with critical information to improve quality of life, and fund research that will lead to treatments and cures.

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.

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Clinical Trials

For a list of clinical trials in this disease area, please click here.