Malignant mixed mullerian tumor of the vagina: case report with review of the literature, immunohistochemical study, and evaluation for human papilloma virus.

The patient was a 57-year-old white woman who presented with a 3.0 x 2.0-cm partially ulcerated vaginal polyp. Histology revealed a malignant mixed mullerian tumor composed of invasive squamous cell carcinoma with deeper areas of undifferentiated pleomorphic sarcoma. Invasive carcinoma had overlying high-grade vaginal intraepithelial neoplasia (VaIN III), which contained koilocytic atypia. In situ hybridization detected high-risk human papillomavirus DNA in both the carcinoma and the sarcoma components.