Neuropathy of metachromatic leucodystrophy

Area of Science:

• Neurology
• Genetics
• Pediatrics

Background:

• Metachromatic leukodystrophy (MLD) is a rare genetic disorder.
• Typically, MLD affects the central nervous system, leading to progressive neurological deficits.
• Peripheral neuropathy as an initial presentation is uncommon and often overlooked.

Purpose of the Study:

• To highlight the unusual presentation of MLD with peripheral neuropathy.
• To emphasize the importance of early diagnosis for therapeutic and genetic counseling purposes.
• To propose a diagnostic approach for suspected cases.

Main Methods:

• Case report of two patients with MLD.
• Clinical presentation analysis focusing on peripheral neuropathy.
• Discussion of diagnostic challenges and recommendations.

Main Results:

• Two patients presented with peripheral neuropathy as the primary symptom.
• No central nervous system involvement was detected at the initial presentation.
• The diagnosis was delayed due to the atypical presentation.

Conclusions:

• Peripheral neuropathy can be the initial manifestation of metachromatic leukodystrophy.
• Early recognition is vital for initiating potential therapies and for genetic counseling.
• Peripheral nerve biopsy should be considered in pediatric cases of unexplained peripheral neuropathy.