Chronic inflammatory demyelinating polyneuropathy and malignancy: A systematic review.

Area of Science:

• Neurology
• Oncology
• Immunology

Background:

• Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare autoimmune disorder affecting peripheral nerves.
• The association between CIDP and underlying malignancies is increasingly recognized.
• Understanding this association is crucial for timely diagnosis and effective management.

Purpose of the Study:

• To systematically review the literature on the association between CIDP and malignancy.
• To identify the types of cancers most frequently associated with CIDP.
• To evaluate the clinical presentation, diagnostic clues, and treatment outcomes of CIDP in the context of malignancy.

Main Methods:

• Systematic literature review of studies investigating CIDP and malignancy.
• Analysis of reported associations, clinical features, and treatment responses.
• Identification of potential diagnostic indicators for malignancy-associated CIDP.

Main Results:

• Hematological disorders, particularly non-Hodgkin lymphoma, are the most common associated malignancies.
• Melanoma is the second most frequent association, often with antiganglioside antibodies.
• CIDP frequently precedes malignancy diagnosis, with over 70% showing a favorable response to treatment.
• Unusual neurological signs and systemic symptoms may suggest an underlying malignancy.
• Immunomodulatory therapy and/or cancer treatment can be effective.

Conclusions:

• CIDP should be considered in the differential diagnosis of patients with suggestive neurological and systemic symptoms.
• Prompt recognition and management of associated malignancy can improve patient outcomes.
• Multidisciplinary approaches involving neurologists and oncologists are essential for optimal care.