Cutaneous coccidiomycosis presenting with a facial plaque

Area of Science:

• Mycology
• Dermatology
• Infectious Diseases

Background:

• Coccidioidomycosis, also known as valley fever, is a fungal infection caused by *Coccidioides immitis*.
• Cutaneous involvement occurs in up to 50% of symptomatic patients with coccidioidomycosis.
• Skin manifestations can present as various lesions, including papules, pustules, plaques, nodules, abscesses, and ulcerations.

Observation:

• A case of coccidioidomycosis presenting as a unique cutaneous plaque on the upper lip in a 55-year-old man is detailed.
• This presentation highlights the diverse ways *Coccidioides immitis* can affect the skin.

Findings:

• Diagnosis of coccidioidomycosis is established through serological tests and direct identification of the fungus in clinical samples.
• The study emphasizes the importance of recognizing cutaneous manifestations for timely diagnosis.

Implications:

• Identifying skin lesions associated with coccidioidomycosis is crucial for diagnosing valley fever, particularly in patients who are otherwise asymptomatic.
• Prompt diagnosis facilitates appropriate treatment with antifungal medications such as fluconazole, ketoconazole, or itraconazole.
• This case underscores the need for dermatologists and infectious disease specialists to consider coccidioidomycosis in the differential diagnosis of unexplained skin lesions.