INTRODUCTION Osteoblastoma is an uncommon benign bone tumor that accounts for 1 percent of all primary bone tumors. About 30 to 40 percent of all osteoblastoma cases involve the spine. Osteoblastoma involving the nasal cavity is rare, with only 11 reported cases in the English-language literature, while only four cases of turbinate osteoblastoma have been described. CASE PRESENTATION We repor...

We present a rare case of synovial chondromatosis of the left temporomandibular joint with intracranial extension and review the relevant literature. This is the sixth published report of such a skull base tumour. We discuss imaging characteristics and the differential diagnosis with regards to a curative surgical resection.

An unusual case of entirely infrasellar craniopharyngioma mimicking a clival chordoma is described. Only 22 cases of craniopharyngioma with nasopharyngeal extension have been reported in the literature. Of the reported cases, most were primarily intracranial with secondary downward extension; only two were thought to originate from an infrasellar location. The present case is another example of...

Study Design: A rare case report in a male and review of literature. Objectives: To describe a case report of invasive glomus jugulare tumor with intracranial extension. Methods: A 35 year old male complaint of pulsating tinnitus on his left ear, vertigo and progressive ipsilateral hearing loss for 4 years. Audiological examination and radiological assessment including Computerized Tomography a...

Intracranial aspergillosis is rare in immunocompetent patients. Extension to the cranial base via the sphenoid sinus is exceptional. Authors report a case of middle cranial fossa aspergillosis involving the cavernous sinus and mimicking an extra-axial tumor in an immunocompetent 65 year-old male. The patient had been suffering from left trigeminal neuralgia and a horizontal diplopia since 4 mon...

Nasal dermoid sinus cysts (NDSCs) are uncommon midline developmental anomalies with an estimated incidence of 1:20,000 to 1:40,000 births.1,2 NDSCs are distinct from dermoids in other regions; they may have an intracranial extension, requiring careful interventional strategies. These lesions can be present anywhere in midline, as sinus or cyst, from glabella to columella, with glabella being th...

Inflammatory pseudotumor most commonly occurs in the orbit and produces orbital pseudotumor, but extension into brain parenchyma is uncommon. We report a case of inflammatory pseudotumor involving sphenoid sinus, cavernous sinus, superior orbital fissure, orbital muscle, and intracranial extension into left temporal lobe producing right hemiparesis and wernicke's aphasia. The patient improved c...

I measured the knee extension torque, produced by eight hemiparetic patients during repeated knee extension-flexion reversals and during separated knee extension-flexion dyads, to determine the effect of "reversal of antagonists" on knee extension torque. The hemiparesis in these eight patients was secondary to intracranial lesions. I tested their involved lower extremity on an isokinetic dynam...