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Histoplasma capsulatum in vessels of the choroid
Annals of Ophthalmology
|May 1, 1977
Abstract:
In a 3-year-old boy disseminated histoplasmosis was recognized from a liver biopsy. The patient died shortly afterwards and had foci of the disease in liver, spleen, and kidneys. Large numbers of yeast cells of Histoplasma capsulatum were found within histiocytes in other organs including the eye. This rare finding is remarkable in view of the search for Histoplasma capsulatum in the syndrome known as "so-called histoplasmosis of the choroid."
Insights
Disseminated histoplasmosis was diagnosed in a 3-year-old boy via liver biopsy. The rare finding of Histoplasma capsulatum in the eye is significant for diagnosing choroidal histoplasmosis.
Area of Science:
- Mycology
- Pathology
- Pediatric Infectious Diseases
Background:
- Disseminated histoplasmosis is a severe fungal infection, often fatal if untreated.
- Histoplasma capsulatum is the causative agent, typically affecting immunocompromised individuals.
- Ocular involvement is a rare but serious manifestation.
Observation:
- A 3-year-old boy presented with disseminated histoplasmosis, initially identified through a liver biopsy.
- The patient exhibited widespread disease foci in the liver, spleen, and kidneys.
- Microscopic examination revealed numerous Histoplasma capsulatum yeast cells within histiocytes in multiple organs.
Findings:
- The presence of Histoplasma capsulatum yeast cells was confirmed in ocular tissues.
- This represents a rare instance of disseminated histoplasmosis with significant ocular findings.
- The extensive dissemination highlights the aggressive nature of the infection in this pediatric case.
Implications:
- This case underscores the importance of considering disseminated histoplasmosis in pediatric patients with unexplained systemic illness.
- The ocular finding provides crucial evidence for the diagnostic search in cases of suspected choroidal histoplasmosis.
- Further research into the pathogenesis and treatment of disseminated ocular histoplasmosis is warranted.