Candida parapsilosis of the nail-bed without onychomycosis

Area of Science:

• Mycology
• Dermatology
• Infectious Diseases

Background:

• Candida parapsilosis is an emerging fungal pathogen, increasingly recognized for causing onychomycosis.
• Historically considered a colonizer, its role as a primary pathogen is now well-established.

Observation:

• A unique case of C. parapsilosis infection solely involving the nail bed is presented.
• The infection presented without concurrent nail plate involvement.
• The patient exhibited twenty-nail melanonychia, a rare clinical sign.

Findings:

• This case demonstrates an atypical presentation of C. parapsilosis onychomycosis.
• The findings challenge the typical clinical manifestations of fungal nail infections.
• The presence of melanonychia in conjunction with nail bed candidiasis is noteworthy.

Implications:

• Highlights the diverse clinical spectrum of Candida parapsilosis infections.
• Suggests the need for considering C. parapsilosis in nail bed infections, even without typical nail plate changes.
• Underscores the importance of recognizing rare presentations for accurate diagnosis and management of fungal nail diseases.