Fusobacterium Necrophorum bacteremia involving multi-organ systems

Area of Science:

• Infectious Diseases
• Orthopedic Surgery
• Radiology

Background:

• A 62-year-old male with a history of avascular necrosis (AVN) of the right hip presented with acute symptoms.
• The patient exhibited signs of systemic infection including dyspnea, fever, tachycardia, and hypertension.

Observation:

• Imaging revealed bilateral airspace opacities and left lower lobe tree-in-bud nodularity on CT scan.
• Lower extremity ultrasonography identified a deep venous thrombus (DVT) in the right leg.
• The patient presented with severe right hip pain, indicative of joint destruction.

Findings:

• Blood cultures confirmed Fusobacterium necrophorum as the causative agent.
• CT and MRI demonstrated significant destruction of the right hip joint, consistent with septic arthritis.
• The patient experienced a complex hospital course.

Implications:

• This case highlights the potential for Fusobacterium necrophorum to cause severe septic arthritis and associated complications like DVT.
• Prompt diagnosis and aggressive management, including surgical intervention with antibiotic-impregnated cement for total hip arthroplasty, are crucial.
• This case underscores the importance of considering rare pathogens in complex infectious presentations.