Leiomyosarcoma of the vagina

A 46-year-old woman, who had very interesting tumor of the vagina microscopically, was presented. The removed tumor (40 g) in the upper lateral wall of the vagina was composed of two nodules. The cut surface of one nodule (20 g) was separated into two parts and they were diagnosed as necrosis and borderline case of leiomyomata microscopically. The other nodule (20 g) was diagnosed as leiomyosarcoma with interlacing bundles of spindle-shaped cells with large hyperchromatic, irregularly shaped nuclei and abundant mutases. These bindings suggest a possibility that leiomyoma of the vagina may undergo malignant change to become leiomyosarcoma.