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Eumycetoma — SCE Infectious Diseases MCQ

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HardTropical & Imported InfectionsEumycetomaSCE Infectious Diseases

A patient from Sudan has chronic painless foot swelling, multiple draining sinuses and black grains. Which diagnosis is most likely?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: B — Eumycetoma caused by a dematiaceous fungus such as Madurella

The best answer is “Eumycetoma caused by a dematiaceous fungus such as Madurella”. The triad of swelling, sinus tracts and grains defines mycetoma; black grains strongly favour fungal eumycetoma, which is confirmed by tissue microscopy, culture or molecular testing. Mycetoma presents with painless swelling, sinus tracts and grains; black grains strongly support eumycetoma and tissue microbiology distinguishes fungal from actinomycete disease.

Reference: WHO mycetoma fact sheet: https://www.who.int/news-room/fact-sheets/detail/mycetoma