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Charcot-Marie-Tooth disease: a case presenting with hyperreflexia.

C C Shieh¹, P J Wang, H J Lin

¹Department of Pediatrics, College of Medicine, National Taiwan University, Taipei, R.O.C.

Zhonghua Minguo Xiao Er Ke Yi Xue Hui Za Zhi [Journal]. Zhonghua Minguo Xiao Er Ke Yi Xue Hui

|March 1, 1990

Summary

Charcot-Marie-Tooth disease (CMT) diagnosis is possible without typical symptoms or family history. Early electrophysiological and tissue studies are crucial for timely intervention in pediatric cases.

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Area of Science:

Neurology
Genetics
Pediatrics

Background:

Charcot-Marie-Tooth disease (CMT) is a group of inherited neurological disorders affecting peripheral nerves.
Diagnosis typically relies on clinical presentation, family history, and electrodiagnostic studies.
Type I CMT involves demyelination, leading to slowed nerve conduction velocities.

Observation:

A 10-year-old girl presented with 3 years of progressive lower extremity weakness, foot deformities, and sensory impairment.
Physical examination revealed absent ankle reflexes and exaggerated knee jerks.
Electrophysiological studies showed prolonged nerve conduction velocities.

Findings:

Nerve and muscle biopsies confirmed demyelination and neurogenic changes, respectively.

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These findings supported the diagnosis of Charcot-Marie-Tooth disease, type I.

The case highlights that CMT can occur without a typical clinical picture or known family history.

Implications:

This case underscores the importance of comprehensive diagnostic approaches in pediatric neurology.
Early and accurate diagnosis of CMT is essential for initiating timely rehabilitation and surgical interventions.
Emphasizes the need for electrophysiological and tissue-based diagnostics for definitive CMT diagnosis.