Asymptomatic cerebral aneurysm in stroke patients eligible for intravenous thrombolytic therapy.

Purpose: To report two cases of acute ischemic stroke with anterior communicating artery aneurysm presented to emergency room within 3 hours after onset, and to review the literature.

Case Report: Two cases of previously unreported anterior communicating artery aneurysm were candidates for intravenous thrombolysis for their acute stroke. Recombinant tissue plasminogen activator was eventually withdrawn by other reasons.

Lactate peak on brain MRS in children with syndromic mitochondrial diseases.

Background: Brain magnetic resonance spectroscopy (MRS) has been reported to be a valuable noninvasive tool in the diagnosis of some rare diseases. In this study, our aim was to assess lactate peak on single-voxel proton MRS in children with syndromic mitochondrial diseases (MDs).

Methods: From March 2004 to November 2010, 14 patients who were diagnosed with syndromic MDs underwent single-voxel proton MRS examination.

Obscure manifestations of Salmonella subdural empyema in children: case report and literature review.

Purpose: Salmonella intracranial infections, including subdural empyema and brain abscess, are rare clinical manifestations in children. The aim of this study is to investigate the clinical course of Salmonella subdural empyema in infants and children.

Methods: We report a 9-month-old female infant diagnosed as Salmonella subdural empyema with clinical features of prolonged fever for more than 2 months and episodic focal seizures.

Measurements of normal inner ear on computed tomography in children with congenital sensorineural hearing loss.

The objective of this study is to use standardized measurements of the inner ear to see whether there are subtle bony malformations in children with congenital sensorineural hearing loss (SNHL) whose temporal bone computed tomography (CT) are grossly normal. The study includes 45 ears with congenital SNHL and grossly normal temporal bone CT scans and 45 ears with normal inner ear structures and normal hearing. Standardized measurements of the inner ear structures were made on axial temporal bone CT scans.

Cerebral sinovenous thrombosis. Neuroimaging diagnosis and clinical management.

Cerebral sinovenous thrombosis (CSVT) is an uncommon disorder that affects the dural venous sinus and cerebral vein. In our study, thirty- four patients were examined. Pre and/or post contrast-enhanced CT was done in 28 patients.

Transcutaneous puncture of the superior ophthalmic vein for embolization of dural carotid-ophthalmic fistula.

Carotid-ophthalmic fistula is a rare disease, which can be treated by transvenous endovascular embolization. Here, we report a unique case with draining vein thrombosed, making a transvenous approach impossible. An old but valuable technique, direct transcutaneous puncture of the superior ophthalmic vein, was used to save the patient's right eye.

Angioplasty as the first-line therapeutic option for venous hypertension with outlet obstruction of dural sinus.

We describe a nonconventional endovascular approach to the treatment of pseudotumor cerebri with venous outlet stricture or obstruction. In three patients presenting with acute visual loss, angiograms showed sinus occlusion and stasis of contrast material, with an increased pressure gradient in the venous system. We used venous sinus angioplasty as the first therapeutic option.

Nasal NK/T-cell lymphoma: computed tomography and magnetic resonance imaging findings.

Background: Primary nasal natural killer (NK)/T-cell lymphoma is the most common cellular subtype seen in nasal lymphomas. It is rare in the Western population but occurs more frequently in Asia, South America, and Mexico. The purpose of this study was to describe the computed tomography (CT) and magnetic resonance (MR) imaging findings of primary nasal NK/T-cell lymphoma.

CT angiography and MR angiography in the evaluation of carotid cavernous sinus fistula prior to embolization: a comparison of techniques.

Background And Purpose: This study compared CT angiography (CTA), MR angiography (MRA), and digital subtraction angiography (DSA) in elucidating the size and location of carotid cavernous sinus fistulas (CCFs) before embolization treatment.

Methods: This was a retrospective study of 53 patients with angiographically confirmed CCF. All patients underwent pre- and postcontrast-enhanced CTA and DSA, and 50 patients also underwent MRA.

Nasopharyngeal carcinoma spreading along the eustachian tube: the imaging appearance.

Nasopharyngeal cancer (NPC) is one of the most common cancers in Taiwan. It can spread anteriorly, laterally, posteriorly, superiorly and inferiorly. Skull base invasion is the common presentation, in up to one-third of cases.

Intraspinal extradural ganglion cyst of the cervical spine.

Intraspinal ganglion cyst is an uncommon lesion, which occurs most frequently in the lower lumbar region; occurrence in the cervical region is extremely rare. We report a case of ganglion cyst in the cervical region and describe its clinical pathological and radiological findings. A 59-year-old man presented with sudden lower limbs weakness and numbness below the nipple level.