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Aseptic knee effusion associated with calcified guinea worms
Annals of Emergency Medicine
|November 1, 1985
Summary
A calcified guinea worm (Dracunculus medinensis) near the knee joint caused aseptic effusion in a Nigerian patient. Symptomatic treatment provided relief, highlighting a rare presentation of dracunculiasis in the United States.
Area of Science:
- Parasitology
- Clinical Medicine
- Rheumatology
Background:
- Dracunculiasis, caused by the guinea worm Dracunculus medinensis, is endemic in parts of Africa and Asia.
- While rare, parasitic infections can manifest with musculoskeletal symptoms, posing diagnostic challenges.
Observation:
- A Nigerian patient presented with chronic right knee pain and swelling.
- Imaging revealed a calcified guinea worm adjacent to the knee joint, consistent with aseptic knee effusion.
Findings:
- The case demonstrates an unusual association between Dracunculus medinensis and aseptic knee effusion.
- Symptomatic management, including NSAIDs, rest, ice, and elevation, was effective for the patient.
Implications:
- This case expands the known clinical spectrum of dracunculiasis.
- It underscores the importance of considering parasitic etiologies in patients with unexplained joint effusions, particularly those with travel history to endemic areas.