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Papulonecrotic tuberculid secondary to Mycobacterium bovis
Archives of Dermatology
|April 1, 1978
Summary
Papulonecrotic tuberculid, a rare skin condition, can manifest as a pruritic eruption. This case highlights its association with Mycobacterium bovis and effective treatment with antituberculous therapy.
Area of Science:
- Dermatology
- Infectious Diseases
- Mycobacteriology
Background:
- Papulonecrotic tuberculid is a rare cutaneous manifestation of tuberculosis.
- Its diagnosis can be challenging due to decreased prevalence of untreated tuberculosis.
- The condition may be mistaken for other dermatoses.
Observation:
- A patient presented with a pruritic papular eruption and constitutional symptoms.
- The eruption exacerbated with low-dose prednisone used for temporal arteritis.
- Cervical lymph node biopsy revealed acid-fast bacilli.
Findings:
- Cultures confirmed Mycobacterium bovis infection.
- The patient's skin eruption resolved completely following antituberculous therapy.
- Clinicopathologic findings supported the diagnosis of papulonecrotic tuberculid.
Implications:
- This case reinforces the clinicopathologic features of papulonecrotic tuberculid.
- It underscores the importance of considering tuberculosis in atypical skin presentations.
- Antituberculous therapy is effective in managing this rare entity.