<prompt> Gilchrist disease is:North American BlastomycosisSouth American BlastomycosisAustralian BlastomycosisNone  <response>: North American Blastomycosis: Gilchrists disease.NORTH AMERICAN BLASTOMYCOSISGilchrist Disease North American blastomycosis is a mycotic infection caused by Blastomyces dermatitidis and may occur either in a cutaneous form or in a systemic form involving bones, liver, lungs, subcutaneous tissues and other organs.Reference: Shafers Textbook of ORAL PATHOLOGY Eighth Edition page no 351,352 