Oral Papillomatosis in Immunocompromised Patients: A Case Series of Kidney Transplant Recipients and Myelodysplastic Syndrome.

Solitary papilloma is a human papillomavirus (HPV)-induced benign indolent epithelial tumor with limited growth, whereas papillomatosis is an entirely different entity. Papillomatosis requires attention because of its aggressive and recurrent clinical progress with risks of dysplastic and malignant transformation. Recurrent respiratory papillomatosis (RRP) has a high prevalence of dysplasia and reports of transformation to carcinoma-ex-papillomatosis, especially when associated with low-risk HPV type 11. Although papillomatosis seldom occurs in the oral cavity, this report describes 3 cases of oral papillomatosis in immunocompromised patients, with 1 case identified as having HPV type 11. Two cases were kidney transplant recipients and the other case had a history of myelodysplastic syndrome followed by allogeneic bone marrow transplantation and graft-versus-host disease. Oral papillomatosis might be problematic, as in RRP, and periodic oral examination for persistent recurrences and malignant transformation can be beneficial to immunocompromised patients.