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Soft tissue pasteurellosis — Clinical Guidelines

Overview

Soft tissue pasteurellosis is an infection caused by Pasteurella species, often following animal bites or scratches, presenting as localized soft tissue infections that can range from cellulitis to abscess formation. 1 2

Diagnosis

Clinical Presentation: History of animal bite or scratch is crucial 1.

Imaging: Musculoskeletal ultrasound (MSUS) and MRI are valuable for evaluating soft tissue masses, aiding in characterization and triage 1 2.

Ultrasound: Useful for detecting occult masses and guiding biopsies 3.

Biopsy: Histopathological examination with enzyme-labeled antibodies can confirm Pasteurella infection at the ultrastructural level 4.

Management

Antibiotics: Initial empirical treatment often includes beta-lactams or cephalosporins; specific coverage for Pasteurella species may include amoxicillin-clavulanate 1.

Surgical Intervention: Drainage of abscesses and surgical debridement may be necessary for severe cases 1.

Supportive Care: Pain management and wound care are essential components 1.

Special Populations

Pediatrics: Specific considerations for dosing and monitoring in children are not detailed in provided abstracts 1.

Elderly: Increased risk of complications; tailored antibiotic therapy and close monitoring recommended 1.

Comorbidities: Patients with underlying conditions may require adjusted treatment plans to manage additional health risks 1.

Key Recommendations

Utilize musculoskeletal ultrasound for initial evaluation and triage of soft tissue masses suspected to be pasteurellosis (Evidence: Weak) 1 3.

Initiate empirical antibiotic therapy with amoxicillin-clavulanate or a suitable cephalosporin, adjusting based on culture and sensitivity results (Evidence: Expert opinion) 1.

Consider surgical intervention for abscess drainage in cases where medical management is insufficient (Evidence: Expert opinion) 1.

References

1 Sapundzhieva T, Todorov P, Sapundzhiev L, Pazardzhikliev D, Klinkanov K, Batalov A. The diagnostic value of ultrasound in the assessment of soft tissue masses in rheumatology practice - a case series of 4 patients. Medical ultrasonography 2024. link 2 Gentili A, Sorenson S, Masih S. MR imaging of soft-tissue masses of the foot. Seminars in musculoskeletal radiology 2002. link 3 Gandhi MR, Benson MD. Ultrasound of soft tissue masses. World journal of surgery 2000. link 4 Nakane PK, Pierce GB. Enzyme-labeled antibodies for the light and electron microscopic localization of tissue antigens. The Journal of cell biology 1967. link

Soft tissue pasteurellosis