A biopsy of a skin lesion on a gardener's arm shows granulomatous inflammation and small, cigar-shaped yeasts. What is the most likely causative agent?
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Correct answer: Sporothrix schenckii
Sporotrichosis (rose gardener's disease) often presents with lymphocutaneous nodules. Histologically, the organism may appear as pleomorphic 'cigar-shaped' yeasts or asteroid bodies.
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