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Keywords

granulomatosis with polyangiitis, histopathology, vasculitis, wound care

 

Authors

  1. Turi, George K. MD
  2. Donovan, Virginia MD
  3. DiGregorio, Julie CCRP
  4. Criscitelli, Theresa M. EdD, RN, CNOR
  5. Kashan, Benjamin MD
  6. Barrientos, Stephan MD
  7. Balingcongan, Jose Ramon PA-C
  8. Gorenstein, Scott MD, FACEP
  9. Brem, Harold MD, FACS

Abstract

PURPOSE: To clarify the histopathology of acute osteomyelitis, chronic osteomyelitis, primary vasculitis, and secondary-type vasculitis.

 

TARGET AUDIENCE: This continuing education activity is intended for physicians and nurses with an interest in skin and wound care.

 

OBJECTIVES/OUTCOMES: After participating in this educational activity, the participant should be better able to:

 

1. Describe the parameters and significance of this study.

 

2. Identify chronic wound diagnosis and treatment.

 

3. Differentiate the histopathology of osteomyelitis and vasculitis.

 

ABSTRACT: OBJECTIVE: The presence of a chronic wound can result in significant morbidity/mortality. Understanding the pathological alterations of wound tissue that are refractory to standard wound therapy is essential for effective wound management and healing. The authors describe 4 wound etiologies, specifically, acute osteomyelitis, chronic osteomyelitis, primary vasculitis, and secondary-type vasculitis.

 

SETTING: A tertiary care hospital.

 

DESIGN: A retrospective review of 1392 wound operations performed during a 24-month period at a tertiary care hospital was conducted. Tissue specimens reviewed included soft tissue infections of the lower extremity, sacrum, hip/pelvis, trunk, perineum, and buttocks.

 

MAIN RESULTS: Acute osteomyelitis is defined as bone tissue with a predominance of polymorphonuclear leukocytes, evidence of osteoclast bone resorption with scalloping of the cortical bone edges, and bone detritus. Chronic osteomyelitis is defined as bone tissue with a significant amount of fibrosis surrounding devitalized tissue and heavy infiltration of lymphocytes and plasma cells. Primary-type vasculitis is defined primarily as inflammation and necrosis of blood vessel walls. In cutaneous lesions of granulomatosis with polyangiitis, ulceration with numerous inflammatory granulomas is seen in the papillary dermis. Secondary vasculitis is defined by vessel wall infiltration by inflammatory cells and fibrinoid necrosis of the small vessel wall.

 

CONCLUSIONS: Pathologies of these 4 types of wounds can complicate standard algorithms designed for diagnosis and treatment, and accurate diagnosis through histopathologic analysis can help tailor targeted treatment.