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Erythema nodosum secondary to meningococcal septicaemia

T Whitton1, A G Smith

  • 1Central Outpatients, North Staffordshire Hospital, Stoke on Trent, Staffordshire, UK.

Clinical and Experimental Dermatology
|May 8, 1999
PubMed

Insights

Erythema nodosum, a skin condition, can be triggered by Neisseria meningitidis infections. This case highlights a rare instance of this bacterial infection causing erythema nodosum in an elderly woman.

Area of Science:

  • Dermatology
  • Infectious Diseases
  • Microbiology

Background:

  • Erythema nodosum (EN) is an inflammatory condition characterized by tender subcutaneous nodules, typically on the anterior legs.
  • While infections are a common cause of EN, specific bacterial triggers can be rare.
  • Neisseria meningitidis is a bacterium primarily known for causing meningitis and sepsis.

Observation:

  • A 77-year-old woman presented with lesions consistent with erythema nodosum.
  • Histopathological examination of biopsy specimens from the lesions confirmed the diagnosis of erythema nodosum.
  • No other potential causes for erythema nodosum were immediately apparent.

Findings:

  • Blood cultures identified the presence of Neisseria meningitidis group C.
  • The clinical presentation and microbiological findings strongly suggest a secondary relationship between the bacterial infection and erythema nodosum.
  • This represents a rare documented case of Neisseria meningitidis-induced erythema nodosum.

Implications:

  • This case expands the known spectrum of clinical manifestations associated with Neisseria meningitidis infections.
  • It underscores the importance of considering infectious etiologies, including rare bacterial triggers, in the differential diagnosis of erythema nodosum.
  • Further investigation may be warranted to understand the specific mechanisms linking Neisseria meningitidis to erythema nodosum development.

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