Endoscopic skull base surgery has undergone rapid advancement in the past decade moving from pituitary surgery to suprasellar lesions and now to a myriad of lesions extending from the cribriform plate to C2 and laterally out to the infratemporal fossa and petrous apex. Evolution of several technological advances as well as advances in understanding of endoscopic anatomy and the development of s...

Subfrontal schwannoma not arising from the cranial nerves are rare tumors. A 19-year-old man presented with a large subfrontal extra-axial enhancing mass with a preoperative diagnosis of skull base meningioma. A subtotal resection of the tumor mass was carried out. Microscopic examination revealed it to be a schwannoma. The residual tumor was treated with fractionated three-dimensional conforma...

Skull base osteomyelitis may develop as a complication of paranasal sinusitis or other regional infectious process or as an unfortunate sequelae of iatrogenic injury or trauma. Afflicted patients generally have some form of systemic immunocompromise, most often diabetes, or a history of external beam radiotherapy for a head and neck malignancy with the radiation portal encompassing the area of ...

INTRODUCTION Hemifacial spasm (HFS) may be due to peripheral axon ephapsis or central motor neuron hyperexcitability. Low facial motor evoked potential (MEP) thresholds or MEP responses to single pulse stimulation (normally multipulse stimulation is needed) may support the central hypothesis. METHODS We retrospectively compared response thresholds for facial MEPs in 65 patients undergoing sur...

Esthesioneuroblastomas are rare, soft-tissue tumors that can often extend from the sinonasal cavity into the intracranial and orbital space. Prognosis depends upon the histological grade and location/extent of the tumor. Treatment often consists of maximum surgical resection followed by adjuvant chemoradiation therapy. We present a case of a patient with esthesioneuroblastoma accompanied by an ...

Chondroma is a benign cartilaginous tumor, usually arising from the small bones of hands and feet, but also been found on several sites of the body. They are rarely diagnosed inside the cranial vault, and in that case more frequently related with the skull base. Nevertheless, there are few isolated cases reports of chondromas arising from the convexity dura, falx, choroid plexus, or intraparenc...

A 15-year-old girl with right tibial osteosarcoma, diagnosed 22 months previously, developed right orbital and skull base metastases, with symptoms including painful protrusion of the right eyeball and severe visual impairment. She underwent embolization of the metastatic tumor, local irradiation, and chemotherapy followed by intralesional resection of the mass because extensive involvement of ...