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Published on: June 13, 2018
Cutaneous infection due to Scedosporium apiospermum in an immunosuppressed patient
M A Chaveiro1, R Vieira, J Cardoso
1Department of Dermatology, Curry Cabral Hospital, Rua da Beneficiencia, no 8, 1069-166 Lisbon, Portugal.
Abstract:
Scedosporium apiospermum, the anamorphic form of Pseudallescheria boydii, is a filamentous fungus with low inherent virulence. Increasing numbers of cases of this infection have been reported probably related to the rising number of immunosuppressed persons. Apart from mycetoma, cutaneous and subcutaneous infection is rarely encountered in clinical practice. We describe a case of cutaneous infection caused by Scedosporium apiospermum in a subject with rheumatoid arthritis and diabetes mellitus who was submitted to long-term therapy with cyclosporin and corticosteroids. Histopathologic examination of a skin biopsy showed a granulomatous infiltrate with hyaline septate hyphae. Culture of two skin biopsies taken at two different observations of the woman, 3 weeks apart, allowed isolation of Scedosporium apiospermum. Therapy with itraconazole, 400 mg/day, for 3 months was effective in curing the infection.
Insights
Scedosporium apiospermum, a fungus causing infections in immunocompromised individuals, rarely presents as a skin infection. This case highlights successful treatment of a cutaneous Scedosporium apiospermum infection with itraconazole.
Area of Science:
- Mycology
- Dermatology
- Infectious Diseases
Background:
- Scedosporium apiospermum, the asexual form of Pseudallescheria boydii, is a fungus with low virulence, but infections are increasing in immunosuppressed populations.
- Cutaneous and subcutaneous infections are uncommon, with mycetoma being the most frequent presentation.
Observation:
- A case of cutaneous infection caused by Scedosporium apiospermum is presented in a patient with rheumatoid arthritis and diabetes mellitus.
- The patient was on long-term immunosuppressive therapy with cyclosporine and corticosteroids.
- Histopathology of skin biopsy revealed granulomatous infiltrate with hyaline septate hyphae.
Findings:
- Scedosporium apiospermum was isolated from two skin biopsies taken three weeks apart.
- The patient was treated with itraconazole at a dosage of 400 mg/day for three months.
- The itraconazole therapy was effective in resolving the cutaneous infection.
Implications:
- This case underscores the importance of considering Scedosporium apiospermum in the differential diagnosis of cutaneous infections in immunocompromised patients.
- It highlights the efficacy of itraconazole in treating cutaneous Scedosporium apiospermum infections.
- Further research into the management of Scedosporium apiospermum infections in specific patient populations is warranted.
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