Median rhomboid glossitis: not a misnomer. Review of the literature and histologic study of twenty-eight cases.

A series of twenty-eight cases of median rhomboid glossitis were studied histologically. Of these twenty-eight cases, 85 percent showed fungal hyphae in the parakeratin layer. The literature is reviewed, and additional evidence is presented to support the theory the median rhomboid glossitis is not a developmental condition but the clinical expression of a localized chronic fungal infection.