Abstract
Patients with psoriatic arthritis (PsA) are at increased risk of infection due to disease course or treatment-related immunodeficiency. We describe a patient with a 10-year history of PsA, with arthritis of the right knee and pain and edema in the right calf, treated with the TNFa inhibitor etanercept for 6 months. Ultrasound showed accumulation of hypoechoic fluid, which was aspirated and was positive for staphylococcus and aspergillus. The patient recovered after surgical drainage and four weeks of antibiotic and antifungal therapy.
MeSH terms
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Adult
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Anti-Bacterial Agents / therapeutic use
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Antifungal Agents / therapeutic use
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Antirheumatic Agents / adverse effects*
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Arthritis, Psoriatic / complications
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Arthritis, Psoriatic / drug therapy*
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Aspergillosis / drug therapy
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Aspergillosis / etiology
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Aspergillus
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Etanercept / adverse effects*
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Humans
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Male
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Popliteal Cyst / chemically induced*
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Popliteal Cyst / drug therapy
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Popliteal Cyst / microbiology
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Staphylococcal Infections / drug therapy
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Staphylococcal Infections / etiology
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Staphylococcus
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Treatment Outcome
Substances
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Anti-Bacterial Agents
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Antifungal Agents
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Antirheumatic Agents
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Etanercept