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Papulonecrotic tuberculid: a neglected disease in Western countries.
Journal of the American Academy of Dermatology
|May 1, 1986
Summary
Papulonecrotic tuberculid, a skin condition linked to tuberculosis, requires combination antituberculosis drug therapy for effective treatment. Monotherapy with drugs like isoniazid can lead to recurrence of skin lesions.
Area of Science:
- Dermatology
- Infectious Diseases
- Pathology
Background:
- Papulonecrotic tuberculid presents as symmetric, scattered papulopustular necrotic lesions on extremities.
- Diagnosis is often supported by positive Mantoux reactions and history of tuberculosis.
Purpose of the Study:
- To investigate the clinical and histological features of papulonecrotic tuberculid.
- To evaluate the efficacy of antituberculosis therapy and identify optimal treatment strategies.
Main Methods:
- Clinical case series of twelve young patients.
- Histopathological examination of twenty skin biopsies.
- Assessment of treatment response to antituberculosis drugs.
Main Results:
- All patients showed positive Mantoux reactions; eight had a history of tuberculosis.
- Antituberculosis therapy led to prompt resolution of skin lesions.
- Recurrences observed with monotherapy (isoniazid or para-aminosalicylic acid and isoniazid) highlight the need for combination treatment.
- Histology revealed subacute lymphohistiocytic vasculitis, thrombosis, and necrosis of dermal vessels.
Conclusions:
- Papulonecrotic tuberculid is associated with tuberculosis and necessitates combination antituberculosis drug therapy.
- Histopathological findings suggest vasculitis and dermal infarction as primary mechanisms.
- Differential diagnosis should consider granuloma annulare and Churg-Strauss granulomatosis.