A case of fulminant comeal endotheliitis without parotitis suspected of mumps virus infection

Purpose: To report a case of fulminant comeal endotheliitis who showed no parotitis and who was suspected of mumps virus infection. Case: A 63-year-old male presented with impaired vision in the left eye. He had had acute fever 8 days before and noticed impaired vision in the left eye the next day. Findings: Corrected visual acuity was 1.5 right and counting fingers left. The left eye showed ciliary injection, diffuse edema of corneal epithelium and stroma, and folds of Descemet membrane. The serum was tested for mumps virus antibody and showed elevated IgM titer. Topical treatment with betamethasone was followed by clearing of the cornea without scarring. Visual acuity improved to 1.2 three months later. Density of corneal endothelial cells decreased to 426/mm ². Conclusion: This case illustrates that mumps virus may be involved in diffuse corneal endotheliitis of unknown origin.