Periorbital Necrotizing Fasciitis Secondary to Candida parapsilosis and Streptococcus pyogenes

Area of Science:

• Infectious Diseases
• Mycology
• Dermatology

Background:

• Necrotizing fasciitis is typically a bacterial infection, often polymicrobial or caused by Gram-positive organisms like Streptococcus and Staphylococcus.
• Fungal causes of necrotizing fasciitis are rare, with Candida parapsilosis emerging as a significant pathogen.
• Candida parapsilosis, a common skin commensal, can cause various infections and is known to spread nosocomially.

Observation:

• This case report details the first instance of human periocular soft tissue infection caused by Candida parapsilosis.
• The infection involved concurrent mycotic and bacterial elements.

Findings:

• Candida parapsilosis was identified as the causative agent in a rare case of necrotizing fasciitis.
• The study provides the first evidence of a mixed fungal (Candida parapsilosis) and bacterial (Streptococcus pyogenes) infection in necrotizing fasciitis.
• This marks the first documented human periocular soft tissue infection by Candida parapsilosis.

Implications:

• Highlights the potential for Candida parapsilosis to cause severe soft tissue infections, including necrotizing fasciitis.
• Emphasizes the importance of considering fungal pathogens in severe, polymicrobial infections, especially in immunocompromised or nosocomially infected patients.
• Suggests the need for broader diagnostic approaches to identify mixed fungal-bacterial etiologies in necrotizing fasciitis.