Diffuse uterine leiomyomatosis with uterine rupture and benign metastatic lesions of the bone.

BACKGROUND: We report a case of diffuse uterine leiomyomatosis in pregnancy complicated by uterine rupture and dissemination to the bone. CASE: A 35-year-old nulliparous woman with a history of uterine leiomyoma presented at term with fetal demise. Failed induction of labor and hemodynamic instability due to uterine rupture resulted in a cesarean hysterectomy. A free-air series performed postoperatively to confirm paralytic ileus revealed multiple lytic bone lesions. The diagnosis of diffuse uterine leiomyomatosis with metastasis was made on histology of the resected uterus and fine-needle aspiration biopsy of the bone. She was managed conservatively, and the lesions are now regressing. CONCLUSION: Diffuse uterine leiomyomatosis should be considered in pregnant women with a history of uterine fibroids and peripartum hemorrhage.