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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.
Abstract:
Neisseria animaloris is a rare pathogen in humans primarily associated with dog and cat bites. Fourteen cases have been documented in the literature related to the difficulty in identifying this bacterium in the laboratory. We present a patient case demonstrating a prolonged treatment course, which is often seen as the result of misdiagnosis, and subsequent nonhealing wound requiring multiple surgeries and eventual wide excision with staged graft coverage. We discuss the clinical course, laboratory identification techniques, surgical treatment, and patient outcome.
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.
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