Uterine leiomyosarcoma metastatic to the brain stem.

A patient with a history of an uterine leiomyosarcoma presented with diplopia, gait disturbances, and hypesthesia of the right face. MRI of the head showed a lesion located in the pons and causing obstructive hydrocephalus. Open biopsy revealed a metastatic tumor with histological features of leiomyosarcoma. Despite whole-brain irradiation, the patient died due to respiratory arrest. This case illustrates that brain stem metastasis may occur as a rare complication in uterine leiomyosarcoma.