Looking Beyond the Cell in Cellulitis.

Area of Science:

• Dermatology
• Infectious Diseases
• Wound Management

Background:

• Erythematous skin is frequently misdiagnosed as cellulitis, with diagnostic accuracy around 33%.
• Cellulitis can be a primary epidermal/dermal infection or secondary to deeper subcutaneous processes like abscesses or necrotizing fasciitis.
• Accurate diagnosis requires evaluating all potential differential diagnoses beyond superficial infection.

Observation:

• A 50-year-old male presented with erythematous skin, initially diagnosed and treated for cellulitis with systemic antibiotics without improvement.
• Consultation with a wound management physician led to a revised diagnosis of a pretibial abscess.
• The patient underwent surgical evacuation and received targeted antibiotic therapy based on tissue cultures.

Findings:

• The pretibial abscess diagnosis and subsequent treatment resolved the patient's condition.
• Inelastic compression therapy was successfully employed for postoperative wound management.
• This case highlights the limitations of diagnosing cellulitis based solely on erythematous skin presentation.

Implications:

• Misdiagnosis of erythematous skin can lead to inappropriate antimicrobial monotherapy, delaying effective treatment.
• A comprehensive diagnostic approach, including physical examination and investigations, is essential for correct diagnosis.
• Integrated treatment strategies incorporating systemic antimicrobials, surgical intervention, and compression therapy improve patient outcomes.