Extensive levamisole-induced vasculitis

Area of Science:

• Immunodermatology
• Toxicology
• Rheumatology

Background:

• Levamisole is a common adulterant in illicit cocaine.
• Levamisole exposure is linked to antineutrophil cytoplasmic antibody-associated vasculitis.
• Cutaneous manifestations can be severe and indicative of systemic disease.

Purpose of the Study:

• To highlight the association between levamisole contamination in cocaine and vasculitis.
• To emphasize the importance of considering levamisole-induced cutaneous vasculopathy in drug users presenting with purpura.
• To report a severe case of levamisole-induced necrotic purpura.

Main Methods:

• Literature review on levamisole and vasculitis.
• Clinical case presentation of a 40-year-old female patient.
• Review of immunological abnormalities associated with levamisole exposure.

Main Results:

• Levamisole can induce antineutrophil cytoplasmic antibody-associated vasculitis.
• The patient presented with severe necrotic purpura and immunological abnormalities.
• Cocaine/levamisole-associated cutaneous vasculopathy syndrome is a potential diagnosis in affected individuals.

Conclusions:

• Dermatologists must consider levamisole-induced vasculopathy in drug users with purpura, especially of the ears or retiform pattern.
• Early diagnosis and recognition of levamisole as a contaminant are crucial for patient management.
• Levamisole poses a significant risk for severe dermatological and systemic complications.