Herpetic geometric glossitis in an immunocompetent patient with pneumonia.

Herpetic geometric glossitis is an uncommon, clinically distinctive presentation of oral herpes simplex virus infection that affects the tongue. All published reports have been in patients who are immunocompromised. We present an immunocompetent woman with viral pneumonia who developed painful linear fissures on the back of the tongue suggestive of herpetic geometric glossitis. The diagnosis was confirmed by both biopsy specimen and immunohistochemistry. As in other cases, the patient promptly responded to treatment with antiviral therapy. The morphology, laboratory findings, and similarities to herpetic corneal dendrites are discussed. Herpetic geometric glossitis should no longer be considered as a diagnosis only in immunosuppressed individuals, but in immunocompetent persons as well.