Lipoadenofibroma of the uterine corpus. Report of a new variant of adenofibroma (benign müllerian mixed tumor).

This report documents an uncommon case of uterine adenofibroma with a fatty component, for which the term lipoadenofibroma is proposed. Abdominal computed tomography and echography revealed a cystic submucosal lesion in the uterine corpus of a 67-year-old woman. Microscopically, the tumor was composed of benign epithelial cells of a proliferative-endometrial type and nonepithelial stromal cells. The latter mesenchymal elements contained scattered foci of mature adipose cells. The present case is considered to be a new variant of adenofibroma (benign müllerian mixed tumor) of the uterine corpus.