About 1 out of 1,000 lesions are or become malignant, typically as a leiomyosarcoma on histology. A sign that a lesion may be malignant is growth after menopause. There is no consensus among pathologists regarding the transformation of leiomyoma into a sarcoma. Metastasis There are a number of rare conditions in which<unk> s metastasize. They still grow in a benign fashion, but can be dangerous depending on their location. See extrauterine<unk> s.
Uterine fibroid
Uterine inversion
Leiomyoma
Cervical pregnancy
Endometrioid tumor
Ovarian pregnancy
Pelvic lipomatosis
Endometriosis