Recurrent Osteoma Overlying a Methylmethacrylate Bone Cement Cranioplasty: A Rare Case.

Osteomas are generally benign tumors of the skull that affect all age groups and are diagnosed in the fourth or fifth decade of life, and are rare in childhood. Surgical resection is curative and malignant transformation is very rare. A 12-yearboy who had undergone a craniotomy for resection of a parietal osteoma four years ago, followed by a cranioplasty with methylmethacrylate bone cement, presented to our clinic with an expanding mass overlying the cranioplasty.

A Rare History: an Intracranial Nail Present for Over a Half-Century.

We present a rare case of a patient with a persistent headache for many years found to have an intracranial nail present for nearly 65 years. The nail was found entering approximately 1 cm from the midline on the left side, passing below the superior sagittal sinus, with the tip 1.5 mm right of the frontal horn of the lateral ventricle.

Neurological recovery after traumatic Cauda Equina syndrome due to glass fragments: An unusual case.

Penetrating spinal injuries with foreign bodies are exceedingly rare. To date, pathological problems due to glass fragments in the spinal canal have rarely been reported. In this report, the case presenting with a back laceration, leg pain, and leg weakness was found to have glass frag-ments in the spinal canal at the L2-L3 level by lumbar computed tomography and magnetic resonance imaging.

Local Tissue Electrical Resistances in Transpedicular Screw Application in the Thoracolumbar Region.

Aim: To determine local tissue electrical resistance differences generated during a screw pass from the pedicle to another tissue rather than determining all individual electrical tissue resistance values.

Material And Methods: We attempted to measure electrical resistance values of regional tissues in addition to fluoroscopic imaging during application of fixation via a transpedicular screw. We also attempted to detect local tissue electrical resistance alterations in case of malposition of the screw inside the pedicle.

Primary spinal epidural Hodgkin's lymphoma.

Primary spinal epidural Hodgkin's lymphoma is very rare. We will discuss the clinical features and treatment of primary spinal epidural Hodgkin's lymphoma. In this paper, a 30-year-old male patient who presented with spinal epidural tumor at the T9-11 level is reported.

Effects of Levetiracetam on neural tube development and closure of the chick embryos in ovo.

Purpose: Effects of Levetiracetam (LEV) within its therapeutic range at a 50 mg/kg dose for the chick embryo in ovo has been studied in order to demonstrate whether LEV would effect neural tube closure at the macroscopic morphology or LEV administered embryos still encounter neuroglial detrimental effects at the histological level.

Methods: Embryos were randomly seperated into control (n = 20) and study (n = 20) groups. The eggshell was windowed at specifically 24 h of incubation, and area underlying the membrane was excised to allow injection with 4.

Paraganglioma of the cauda equina: a highly vascular tumour.

Paragangliomas uncommonly occur in the cauda equina region. This type of tumour may be misdiagnosed pre-operatively as a neurinoma or an ependymoma. Paragangliomas are highly vascular tumours.

Can using a peel-away sheath in shunt implantation prevent ventricular catheter obstruction?

Purpose: Shunt obstruction is the most common shunt complication. In 2003, Kehler et al. used peel-away sheath while implanting the ventricular catheter in 20 patients.

Atypic geniculate neuralgia: atypic anatomic correlation of cranial nerve roots and AICA.

Geniculate neuralgia is a rare cause of craniofacial pains. The anterior inferior cerebellar artery is the offending vessel which compress nervus intermedius in the patients with typical geniculate neuralgia. We report a patient whose pain was atypical for either geniculate neuralgia and trigeminal neuralgia.

Can midline brain shift be used as a prognostic factor to predict postoperative restoration of consciousness in patients with chronic subdural hematoma?

Background And Purpose: Our aim was to determine if midline brain shift could be used as a prognostic factor to predict postoperative restoration of consciousness in patients with CSDH. In these patients, we evaluated the relation (1) between midline brain shift as measured on CT and alteration of level of consciousness, and (2) between midline brain shift and restoration of consciousness after the operation.

Methods: Prospectively recorded data of 45 patients with CSDH were evaluated.

Depressed fractures over cranial venous sinus.

Seventeen patients with depressed fractures over cranial venous sinus who had undergone operations between 1993 and 1998 were reviewed retrospectively. There were 15 male and two female patients. Their ages ranged from 7 to 48 years.