Related Experiment Videos
Sporotrichosis
J G Rowe1, P C Amadio, R S Edson
1Department of Orthopedics, Mayo Clinic, Rochester, MN 55905.
Abstract:
Forty-nine patients with culture-proven sporotrichosis were treated between 1957 and 1986. Infections were lymphocutaneous in 36 patients, pulmonary in two, intraarticular in four, and involved multiple deep tissues in seven. Thirty-six infections involved an upper extremity. Five patients with deep infection had some evidence of being immunocompromised. Delay in diagnosis after presentation averaged 4 months overall and 25 months for those with deep infection. Ten of 12 joint infections resulted in significant functional impairment. Treatment with saturated potassium iodide solution was effective for lymphocutaneous infection. Four patients with infection of deeper tissues remain infected despite multiple operations and systemic courses of antifungal medication.
Insights
Sporotrichosis, a fungal infection, often affects the upper extremities. Early diagnosis and treatment with potassium iodide are effective for lymphocutaneous forms, but deep infections pose challenges.
Area of Science:
- Mycology
- Infectious Diseases
- Dermatology
Background:
- Sporotrichosis is a fungal infection caused by *Sporothrix schenckii*.
- It commonly presents in lymphocutaneous form, but can disseminate to deeper tissues.
- Immunocompromised individuals may be at higher risk for severe disease.
Purpose of the Study:
- To review treatment outcomes for sporotrichosis patients.
- To analyze infection types, affected sites, and diagnostic delays.
- To evaluate treatment efficacy for different forms of sporotrichosis.
Main Methods:
- Retrospective case series.
- Analysis of 49 patients with culture-proven sporotrichosis treated between 1957 and 1986.
- Review of patient demographics, infection types, affected sites, diagnostic timelines, and treatment responses.
Main Results:
- Lymphocutaneous sporotrichosis was most common (36/49), often affecting the upper extremity (36/49).
- Deep tissue infections occurred in 7 patients, with 5 showing signs of being immunocompromised.
- Delayed diagnosis averaged 4 months overall, and 25 months for deep infections.
- Potassium iodide solution was effective for lymphocutaneous sporotrichosis.
- Joint infections frequently led to functional impairment (10/12).
- Four patients with deep infections remained infected despite aggressive treatment.
Conclusions:
- Saturated potassium iodide solution is effective for lymphocutaneous sporotrichosis.
- Delayed diagnosis is a significant issue, particularly for deep-seated infections.
- Deep tissue and joint sporotrichosis can lead to poor outcomes and functional impairment, requiring further therapeutic strategies.