[Brain metastases from uterine leiomyosarcoma]. / Métastases cérébrales d'un léiomyosarcome utérin.

ABSTRACT

We here report the case of a 46-year old female patient with a history of total hysterectomy performed in 2011 due to uterine leiomyosarcoma followed by sessions of radiotherapy, who presented with right hemicorporal sensorimotor deficit of acute onset. Clinical examination showed right pyramidal syndrome. Brain magnetic resonance imaging (MRI) revealed a left frontoparietal extra-axial aggressive tumor (A). The patient underwent surgical resection of the cerebral lesion. Anatomo-pathological examination showed fusocellular tumor proliferation (B). Tumor cells looked like discreetly atypical muscle cells and showed few mitotic figures as well focal necrosis. Tumor proliferation infiltrated the bone, the soft tisuues and the dura-mater. Immunohistochemical examination was performed which showed anti h-caldesmon-positive cells (C) and smooth muscle anti-actin-positive cells. The diagnosis of brain metastasis from leiomyosarcoma was retained. The patient underwent radiotherapy sessions with improvement of the motor deficit.