Abstract
BackgroundPasteurella multocida is a well-known gram-negative facultative anaerobe well known for its ability to cause soft tissue infections following animal bite or scratch. Here we present a case with mycotic aneurysm of the superficial femoral artery due to P. multocida infection.Case presentationA 62 year old male patient presented with worsening right leg pain and swelling. On examination, he was found to have profound swelling and erythema of the right medial thigh and tenderness to palpation. Computerized tomography showed findings suggestive of right femoral pseudoaneurysm with a large right medial thigh hematoma. Blood cultures grew P. multocida. Patient underwent emergent open resection of the mycotic aneurysm and vascular bypass surgery. Intraoperatively, the site was noted to be grossly infected with multiple pockets of pus which were drained and pus cultures grew P. multocida. The diagnosis of P. multocida bacteremia with right femoral mycotic aneurysm and thigh abscess was made. Patient received 6 weeks of intravenous ceftriaxone and recovered.ConclusionOur case is the first report on infection of peripheral vessel with Pasteurella and highlights the importance of prompt surgical intervention and effective antibiotic treatment
Highlights
Pasteurella multocida is a well-known gram-negative facultative anaerobe well known for its ability to cause soft tissue infections following animal bite or scratch
Infection with P. multocida commonly manifests as localized cellulitis, abscesses, tenosynovitis, osteomyelitis, and septic arthritis [1]
We describe a 62-year-old male with a mycotic aneurysm of superficial femoral artery due to P. multocida
Summary
Pasteurella multocida (P. multocida) is a well-known gram-negative facultative anaerobic coccobacillus present in the normal oral flora of animals, with cats and dogs having the highest carriage rates. The patient reported living at a friend’s home for the past 2.5 years with 15 dogs and 1 cat. He claims that he sustained numerous scratches on his bilateral arms and abdomen from the pets. Blood cultures grew gram-negative bacilli, but multiplex molecular blood culture panel failed to detect any of the organisms included in the panel. He was transferred to our tertiary care hospital for further management. The diagnosis of P. multocida bacteremia with right femoral mycotic aneurysm, and right thigh and L3 lumbar paraspinal abscesses was made.
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