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Updated: Aug 21, 2026

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
Published on: March 4, 2014
[Multiple sclerosis with sensory disturbances and hyperhidrosis of the hand]
V Deramecourt1, J De Seze, S Delalande
1Service de Neurologie D, Hôpital R. Salengro, CHRU, Lille.
Introduction:
Hyperhidrosis may result from brain, spinal cord or peripheral nervous system injuries. We report the case of a 26-year-old patient who presented with sensorial disorders and focal hyperhidrosis of the right hand.
Observation:
MRI revealed multiple lesions very suggestive of active demyelinization. A lesion in the left paramedian posterior portion of the pons was enhanced after gadolinium infusion. The diagnosis of multiple sclerosis was suggested by MRI data and oligoclonal IgG bands on cerebrospinal fluid electrophoresis.
Conclusions:
Focal hyperhidrosis may be due to a lesion of the crossed sympathetic inhibitory tract. Although autonomic dysfunction is common during the late course of multiple sclerosis this case is, to our knowledge, the first report of focal hyperhidrosis revealing multiple sclerosis.
Insights
Focal hyperhidrosis, a rare symptom of excessive sweating, can indicate underlying neurological conditions. This case highlights focal hyperhidrosis as an early indicator of multiple sclerosis.
Area of Science:
- Neurology
- Autonomic Nervous System Disorders
- Neuroimmunology
Background:
- Hyperhidrosis can stem from central or peripheral nervous system damage.
- Autonomic dysfunction is a known complication in advanced multiple sclerosis.
Observation:
- A 26-year-old patient presented with sensory disturbances and localized excessive sweating of the right hand.
- Magnetic resonance imaging (MRI) identified demyelinating lesions, including one in the pons enhancing with gadolinium.
- Cerebrospinal fluid analysis revealed oligoclonal IgG bands, supporting the diagnosis.
Findings:
- The patient's focal hyperhidrosis was attributed to a lesion affecting the crossed sympathetic inhibitory tract.
- This presentation suggests focal hyperhidrosis can be an initial manifestation of multiple sclerosis.
Implications:
- Focal hyperhidrosis may serve as an early diagnostic clue for multiple sclerosis.
- Understanding this association can improve early diagnosis and management of multiple sclerosis patients with autonomic symptoms.
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