Mycology/Parasitology USMLE Step 1 Practice Question
A 6-year-old child from West Africa presents with itching and a painless subcutaneous nodule over the shin. On examination, a small hole is noted at the center of the nodule, with drainage of yellowish material containing calcified structures. Microscopy reveals microfilariae when examined under light. Which of the following organisms is most likely responsible?
Answer choices
- AAscaris lumbricoides
- BTrypanosoma brucei
- CLoa loa
- DOnchocerca volvulusCorrect answer
- EWuchereria bancrofti
- FMansonella streptocerca
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