Atypical diabetic neuropathies

Area of Science:

• Neurology
• Endocrinology
• Diabetology

Background:

• Diabetes mellitus is a global health issue with diverse systemic complications.
• Diabetic polyneuropathy affects approximately 50% of patients, but atypical forms are also prevalent.
• Understanding these varied neuropathies is crucial for effective patient management.

Purpose of the Study:

• To review and discuss atypical peripheral nerve conditions associated with diabetes.
• To differentiate these neuropathies from typical diabetic polyneuropathy.
• To provide insights into their underlying mechanisms and clinical presentations.

Main Methods:

• Literature review of atypical diabetic neuropathies.
• Analysis of clinical presentations, pathophysiology, and diagnostic challenges.
• Synthesis of current evidence on treatment-induced neuropathy, radiculoplexus neuropathies, cranial mononeuropathies, compressive neuropathies, and CIDP in diabetes.

Main Results:

• Identified several atypical neuropathies including treatment-induced, radiculoplexus, cranial mononeuropathies, compressive neuropathies, and CIDP.
• Highlighted distinct pathophysiological mechanisms: microvasculitis, ischemia, and compression.
• Noted diagnostic challenges, especially for CIDP in diabetic individuals.

Conclusions:

• Diabetic patients are susceptible to a spectrum of neuropathies beyond typical distal symmetric polyneuropathy.
• Atypical neuropathies present with varied mechanisms and clinical courses.
• Further research and diagnostic refinement are needed for optimal care of these complex conditions.