A 35-year-old homeless man with HIV developed a serious fungal infection caused by Sporothrix brasiliensis that spread throughout his body, including to his brain and testicles. A testicle lump was initially thought to be cancer and surgically removed, but it was actually a fungal infection. This is only the fifth case ever reported of this fungus infecting testicles. The patient was successfully treated with antifungal medications and remains healthy one year later.