Herpes simplex virus and intraoral ulcers in immunocompromised patients with haematologic malignancies

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Abstract
Possible factors predisposing to the development of intraoral ulcers in immunocompromised patients with haematologic malignancies were investigated. Among 46 patients undergoing antineoplastic treatment, 18 developed an intraoral ulcer during the prospective study. Patients with or without ulcers were comparable with respect to underlying disease, presence of teeth, the qualitative composition of the aerobic and facultatively anaerobic oral microflora, herpes simplex virus (HSV) titer positivity, a past history of herpes labialis, leukocyte and thrombocyte counts, and duration of fever. Viral cultures from saliva revealed an association between the presence of HSV in saliva and the presence of intraoral ulcers. HSV was not isolated from the saliva of any patient without ulcers. Viral cultures from the ulcers revealed growth of HSV in 11 (61 %) of the 18 patients with ulcers. HSV-positive ulcers were located more often on the alveolar process than elsewhere in the oral cavity. Ulcers on the lateral borders of the tongue and on the buccal mucosa were found only in dentate patients. Development of intraoral ulcers was not associated with an increase of the HSV titer in serum in any patient. It is concluded that some intraoral ulcers, especially when located on the alveolar process, are associated with and probably caused by HSV, while mechanical trauma during mastication seems likely to be involved in the pathogenesis of ulcers elsewhere in the oral cavity.

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