A Rare Case of Neisseria animaloris Hand Infection and Associated Nonhealing Wound

Kathryn C Helmig1, Mark S Anderson1, Thomas F Byrd2

  • 1Department of Orthopaedic Surgery, University of New Mexico, Albuquerque, NM.

Insights

Neisseria animaloris, a rare bacterium from pet bites, poses diagnostic challenges. This case highlights prolonged misdiagnosis and treatment, emphasizing the need for improved identification and management strategies.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Surgical Pathology

Background:

  • Neisseria animaloris is an uncommon human pathogen, frequently linked to domestic animal bites.
  • Laboratory identification of N. animaloris presents significant challenges, contributing to diagnostic delays.

Observation:

  • A case of a nonhealing wound is presented, stemming from a prolonged and complex clinical course.
  • The patient required multiple surgical interventions, including wide excision and staged graft coverage due to misdiagnosis.

Findings:

  • The case illustrates the difficulties in timely laboratory identification of N. animaloris.
  • Misdiagnosis led to delayed and inadequate treatment, resulting in a chronic, nonhealing wound.

Implications:

  • Improved diagnostic techniques for N. animaloris are crucial for effective patient management.
  • Early and accurate identification can prevent prolonged morbidity and the need for extensive surgical procedures.