Disseminated Coccidioidomycosis in a Patient with Normal Immunity: An Emerging Public Health Challenge with Geographic Expansion

September 1, 2026

Annals Of Internal Medicine: Clinical Cases

Background

Coccidioidomycosis is a fungal infection caused by Coccidioides immitis and Coccidioides posadasii, primarily affecting individuals in arid regions of the western United States and parts of Latin America. Traditionally associated with immunocompromised patients, coccidioidomycosis can also occur in immunocompetent individuals.

Data Highlights

No numerical data or trial data presented in the article.

Key Findings

A 41-year-old immunocompetent man was diagnosed with disseminated coccidioidomycosis after presenting with chest pain and skin nodules.
Initial misdiagnosis included bronchopneumonia and presumed tuberculosis, delaying appropriate treatment for over three months.
Final pathology confirmed Coccidioides infection with characteristic spherules and endospores.
Despite severe disease, the patient could not continue treatment with intravenous amphotericin B due to lack of insurance and housing.

Clinical Implications

Clinicians should maintain a high index of suspicion for coccidioidomycosis in patients presenting with respiratory symptoms and skin lesions, especially in endemic areas.

Conclusion

The case underscores the need for increased awareness of disseminated coccidioidomycosis, particularly as its incidence rises among immunocompetent patients in changing geographic landscapes.