The answer is "the patient has an infection caused by a dimorphic fungus". Dimorphic fungi are those parasites that exist either in yeast frame or as a shape contingent upon ecological conditions, physiological states of the organism or the hereditary attributes.
Some dimorphic fungi will change to yeast or shape frame contingent upon the common temperature. These organisms are alluded to as thermally dimorphic. Others will change to yeast in the event that they develop inside host tissues.