A 73-year-old woman with arthritis being treated with immunosuppressive drugs developed a severe fungal airway infection caused by a rare fungus called Scedosporium apiospermum. Her airway became dangerously narrowed, requiring emergency support with an artificial lung machine while doctors inserted a stent to open her airway. After correctly identifying the fungus and treating it with an antifungal medication called voriconazole, she recovered well with complete healing of the infection.