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Abstract:
The ocular pathologic findings in an immunosuppressed patient who died of disseminated histoplasmosis are described. Histoplasma capsulatum was found in large numbers within the endothelial cells of the choroid, in one area each of the ciliary body and trabecular meshwork. There was a minimal inflammatory response. No granulomas were noted. Previously reported cases of ocular histoplasmosis in immunosuppressed patients are similar in that, with one exception, granulomatous inflammation was not demonstrated. Thirteen eyes in which histoplasma organisms have been found in the eye are reviewed.
Insights
Disseminated histoplasmosis in an immunosuppressed patient revealed Histoplasma capsulatum in ocular tissues with minimal inflammation. This contrasts with typical granulomatous responses seen in ocular histoplasmosis cases.
Area of Science:
- Ophthalmology
- Mycology
- Pathology
Background:
- Ocular histoplasmosis typically presents with granulomatous inflammation.
- Immunosuppression can alter the host response to fungal infections.
Observation:
- Histoplasma capsulatum was identified in the choroid, ciliary body, and trabecular meshwork of an immunosuppressed patient.
- A minimal inflammatory response was observed, with no granulomas detected.
Findings:
- The ocular pathology in this immunosuppressed patient showed extensive fungal presence without significant granuloma formation.
- This finding aligns with previous reports of atypical ocular histoplasmosis presentations in immunocompromised individuals.
Implications:
- The study highlights the varied presentation of ocular histoplasmosis in immunosuppressed patients.
- Understanding these differences is crucial for accurate diagnosis and management of fungal eye infections in immunocompromised populations.