A 71-year-old woman presented with a 2-month history of progressive exophthalmos. Magnetic resonance imaging revealed a tumor occupying the right frontal sinus that compressed the right orbit and eye ball. The tumor was resected through a right frontal craniotomy. The pathologic diagnosis was leiomyoma and similar to the histologic diagnosis of a uterine leiomyoma resected 4 years earlier. We suggest that this rare sinonasal leiomyoma was a benign metastasizing leiomyoma from the uterus to the nasal sinus.

We report two patients with ventral schwannoma in the thoracolumbar region manifesting as low back pain with or without paraparesis. In both patients magnetic resonance imaging (MRI) revealed a heterogeneously-enhanced intradural extramedullary mass in the thoracolumbar region. The tumors were successfully removed via the posterior approach. Their histology was consistent with schwannoma. Postoperative MRI showed no evidence of a tumor in either patient. Spinal schwannomas are common benign intradural extramedullary spinal neoplasms; most arise from the dorsal- and very few from the anterior roots. A literature review revealed that ventral schwannomas, including giant tumors as in the one from case 2 in our study, affect mainly the cervical region, and most are surgically addressed via the posterior approach. Careful handling of the spinal cord is mandatory for satisfactory surgical results.
Humans ; Low Back Pain ; Magnetic Resonance Imaging ; Neurilemmoma* ; Paraparesis ; Spinal Cord ; Spinal Neoplasms ; Spine*