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Published on: November 28, 2010
Ovarian histoplasmosis in systemic lupus erythematosus
P A Isotalo1, A E McCarthy, L Eidus
1Department of Pathology, University of Ottawa, Ontario, Canada.
Abstract:
Histoplasma capsulatum is a pathogenic fungus endemic to North, Central, and South America. Histoplasmosis is primarily acquired by inhalation and in immunocompetent hosts infection is generally limited to the lungs. Histoplasmosis may disseminate systemically in hosts with defective cell-mediated immunity or massive inoculation. Systemic lupus erythematosus (SLE) is an autoimmune disorder associated with multiple primary and drug-related immunological defects that predispose patients to infections. Disseminated histoplasmosis has only rarely been described in association with SLE. We describe a 32-year-old woman with SLE who had a 2-year history of irregular menses and a confirmed anovulatory state, secondary to ovarian histoplasmosis. The ovarian histoplasmosis was discovered incidentally at surgery for a persistent colo-cecal fistula, which had developed 6 months earlier and was originally associated with an Actinomyces and Fusobacterium pelvic abscess. The patient had no evidence of active pulmonary histoplasmosis and her disseminated histoplasmosis likely resulted from re-activation of latent disease. This is the first description of disseminated histoplasmosis presenting as ovarian dysfunction in a patient with SLE.
Insights
Disseminated histoplasmosis, a fungal infection, rarely affects patients with Systemic Lupus Erythematosus (SLE). This case highlights ovarian histoplasmosis causing anovulation in an SLE patient, suggesting potential reactivation of latent disease.
Area of Science:
- Mycology
- Infectious Diseases
- Immunology
Background:
- Histoplasma capsulatum causes histoplasmosis, typically a pulmonary infection acquired via inhalation.
- Disseminated histoplasmosis can occur in immunocompromised individuals, including those with autoimmune disorders like Systemic Lupus Erythematosus (SLE).
- SLE is associated with immune defects, increasing susceptibility to infections, though disseminated histoplasmosis is an uncommon complication.
Observation:
- A 32-year-old woman with SLE presented with a 2-year history of irregular menses and an anovulatory state.
- Ovarian histoplasmosis was incidentally discovered during surgery for a persistent colo-cecal fistula.
- The patient had no signs of active pulmonary histoplasmosis.
Findings:
- The anovulatory state in the SLE patient was attributed to ovarian histoplasmosis.
- Disseminated histoplasmosis in this case likely resulted from the reactivation of a previously latent infection.
- This represents the first reported instance of disseminated histoplasmosis manifesting as ovarian dysfunction in a patient with SLE.
Implications:
- This case expands the known clinical presentations of disseminated histoplasmosis.
- It underscores the importance of considering opportunistic infections, including fungal infections, in SLE patients with atypical symptoms.
- Reactivation of latent histoplasmosis should be considered in immunocompromised patients presenting with unusual organ involvement.
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