Which organism is NOT among the systemic (deep) mycoses listed?

• A. Coccidioides immitis
• B. Histoplasma capsulatum
• C. Sporothrix schenckii
• D. Paracoccidioides brasiliensis

Answer: (C)

Systemic (deep) mycoses are infections caused by thermally dimorphic fungi that are typically inhaled as mold spores and can disseminate from the lungs to internal organs. Among the options, Sporothrix schenckii is the one that does not belong to that group. It causes sporotrichosis, a subcutaneous infection acquired through traumatic inoculation with plant matter, which usually remains localized to the skin and regional lymphatics rather than spreading systemically. The other organisms listed are classic systemic pathogens capable of dissemination, especially in susceptible hosts. Therefore, Sporothrix schenckii is not categorized as a systemic (deep) mycosis.