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GTR Home > Conditions/Phenotypes > Charcot-Marie-Tooth disease axonal type 2Z

Charcot-Marie-Tooth disease axonal type 2Z

Synonyms
CHARCOT-MARIE-TOOTH DISEASE, AXONAL, AUTOSOMAL DOMINANT, TYPE 2Z; CHARCOT-MARIE-TOOTH NEUROPATHY, TYPE 2Z
Modes of inheritance
Autosomal dominant inheritance (Orphanet)

Summary

Charcot-Marie-Tooth disease type 2Z (CMT2Z) is an autosomal dominant axonal peripheral neuropathy characterized by onset, usually in the first decade, of distal lower limb muscle weakness and sensory impairment. The disorder is progressive, and affected individuals tend to develop upper limb and proximal muscle involvement in an asymmetric pattern, resulting in severe disability late in adulthood. Rare occurrence of global developmental delay with impaired intellectual development or learning difficulties has been observed. In some instances, the same mutation may result in different phenotypic manifestations (CMT2Z or DIGFAN), which highlights the clinical spectrum associated with MORC2 mutations and may render the classification of patients into one or the other disorder challenging (summary by Sevilla et al., 2016, Ando et al., 2017, Guillen Sacoto et al., 2020). For a phenotypic description and a discussion of genetic heterogeneity of axonal CMT, see CMT2A1 (118210). [from OMIM]

Available tests

11 tests are in the database for this condition.

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Clinical tests (11 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: CMT2Z, DIGFAN, ZCW3, ZCWCC1, MORC2
    Summary: MORC family CW-type zinc finger 2

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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