Enzyme-linked immunosorbent assay as a helpful diagnostic tool for pemphigus erythematosus with equivocal histologic and immunofluorescent findings.

Enzyme-linked immunosorbent assay is a sensitive and specific method for the detection of circulating autoantibodies in pemphigus vulgaris and foliaceus. Herein, pemphigus erythematosus with equivocal immunofluorescence and non-diagnostic histology, but confirmed by enzyme-linked immunosorbent assay, is described. As a non-invasive, sensitive, and specific assay with additional utility for monitoring disease activity, this case adds to growing evidence supporting ELISA as the diagnostic method of choice for common and less common variants of pemphigus.