Lemierre's syndrome: are we underdiagnosing this life-threatening infection?

R P Harar1, A MacDonald, D Pullen

  • 1Whipps Cross Hospital, London, UK.

Insights

Fusobacterium necrophorum can cause severe tonsillitis and Lemierre's syndrome. Early recognition and blood cultures are crucial for diagnosing this potentially fatal infection, even with prompt antibiotic response.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Vascular Medicine

Background:

  • Severe tonsillitis can be a precursor to serious systemic infections.
  • Fusobacterium necrophorum is a bacterium that can cause severe throat infections.

Observation:

  • Three patients with severe tonsillitis grew Fusobacterium necrophorum in blood cultures over 12 months.
  • One patient developed external and internal jugular vein thrombosis, indicative of Lemierre's syndrome.

Findings:

  • Two patients with Fusobacterium necrophorum tonsillitis responded rapidly to antibiotics.
  • The third patient, with a longer symptom history, presented with jugular vein thrombosis, a critical step in disease dissemination.

Implications:

  • Lemierre's syndrome may be underdiagnosed due to rapid clinical improvement with antibiotics like penicillin and metronidazole.
  • Emphasizes the importance of blood cultures and neck examination in severe tonsillitis cases.
  • Highlights the potential severity of Fusobacterium necrophorum infections beyond typical pharyngitis.

Related Concept Videos

Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Leishmaniasis01:30

Leishmaniasis

Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...