noun
Usage: usually capitalized S&A
Etymology: so called from its being limited chiefly to South America and distinct from North American blastomycosis
: blastomycosis characterized by formation of ulcers on the mucosal surfaces of the mouth that spread to lips, nose, and cheeks, by great enlargement of lymph nodes especially of the throat and chest, and by involvement of the gastrointestinal tract and caused by a fungus ( Blastomyces brasiliensis )