What is the classic tissue finding for Sporothrix schenckii infection?

What is the classic tissue finding for Sporothrix schenckii infection?

• A. Broad-based budding yeast in tissue; blastomycosis
• B. Cigar-shaped budding yeast in tissue; lymphocutaneous sporotrichosis
• C. Yeast forms with pseudohyphae; candidiasis
• D. Spherules with endospores; coccidioidomycosis

Answer: (B)

Sporothrix schenckii in tissue is best recognized by slender, cigar-shaped budding yeasts found within granulomatous inflammation, typically along lymphatic channels in lymphocutaneous sporotrichosis. This dimorphic fungus forms these distinctive cigar-shaped yeast forms at body temperature, which sets it apart from other fungal infections seen on tissue. For context, blastomyces shows broad-based budding yeasts, Candida exhibits yeast with pseudohyphae, and Coccidioides presents large spherules filled with endospores. The cigar-shaped appearance is the classic clue pointing to Sporothrix infection.

Sporothrix schenckii in tissue is best recognized by slender, cigar-shaped budding yeasts found within granulomatous inflammation, typically along lymphatic channels in lymphocutaneous sporotrichosis. This dimorphic fungus forms these distinctive cigar-shaped yeast forms at body temperature, which sets it apart from other fungal infections seen on tissue. For context, blastomyces shows broad-based budding yeasts, Candida exhibits yeast with pseudohyphae, and Coccidioides presents large spherules filled with endospores. The cigar-shaped appearance is the classic clue pointing to Sporothrix infection.