Wade histoid leprosy revisited.

Area of Science:

• Dermatology
• Infectious Diseases
• Microbiology

Background:

• Leprosy is a chronic infectious disease caused by Mycobacterium leprae.
• Histoid leprosy is a rare, distinct clinical variant of lepromatous leprosy.
• Early recognition is crucial for preventing neurological damage and disease transmission.

Observation:

• An 18-year-old male presented with a 4-year history of skin lesions and distal paresthesias.
• Epidemiological history revealed childhood contact with leprosy patients.
• Histopathology confirmed histiocytic infiltrate with acid-fast bacilli; smears showed numerous bacilli.

Findings:

• The clinical, epidemiological, histopathological, and microbiological data confirmed a diagnosis of lepromatous leprosy, histoid variant.
• The patient received World Health Organization-recommended multidrug therapy.
• A rapid and sustained clinical improvement was observed post-treatment.

Implications:

• This case underscores the importance of considering rare leprosy variants in differential diagnoses.
• Prompt initiation of multidrug therapy is effective in managing histoid leprosy.
• Effective treatment contributes to preventing long-term neurological complications and aids in epidemiological control.