Histological Characteristics of Myxoid (Metaplastic) Meningioma in a 44-Year-Old Woman.

Myxoid (metaplastic) meningioma is the rarest WHO grade 1 meningioma, and its histological characteristics are useful in diagnostics. We present the case report of a myxoid (metaplastic) meningioma in a 44-year-old woman to highlight the important histological features and observations that are critical for making an accurate diagnosis. We report a rare myxoid meningioma using magnetic resonance imaging (MRI) images and its histopathological features.

Tetra- and dinuclear manganese complexes of xanthene-bridged O,N,O-Schiff bases with 3-hydroxypropyl or 2-hydroxybenzyl groups: ligand substitution at a triply bridging site.

Complexation properties of U-shaped ligands, L and L, which are Schiff bases of 5,5'-(9,9-dimethylxanthene-4,5-diyl)bis(salicylaldehyde) (Hxansal) with 3-amino-1-propanol or 2-hydroxybenzylamine, respectively, were investigated to construct polynuclear manganese complexes. In these ligands, two O,N,O-Schiff bases are bridged by a xanthene backbone. The reactions of HL or HL with manganese salts afforded tetra- and dinuclear manganese complexes, including the tetramanganese(ii,ii,iii,iii) complex [Mn(L)(μ-OAc)] with a MnO core exhibiting an incomplete double-cubane structure.

Third ventricular meningioma--case report.

A 63-year-old man presented with headache. Magnetic resonance imaging showed a mass lesion homogeneously enhanced with gadolinium, which occluded the route from the third ventricle to the aqueduct. The patient underwent surgery for removal of the tumor via the right frontal transcortical-transventricular approach to the third ventricle via the transchoroidal route.

Early appearance of high grade glioma on magnetic resonance imaging.

The early appearance of high grade glioma on magnetic resonance (MR) imaging was retrospectively reviewed in the clinical records and MR images of 52 patients with intracerebral glioma treated in Osaka General Medical Center between 1997 and 2006. Three patients had no abnormal findings, and four patients had only hyperintense areas on T(2)-weighted imaging at initial MR examination. Five of the seven patients presented with generalized seizures.

[Massive epistaxis due to traumatic internal carotid artery pseudoaneurysm: a case report].

We present a case of traumatic pseudoaneurysm of the internal carotid artery (ICA) accompanied by skull base fracture, which was treated by endovascular trapping of the internal carotid artery. A 70-year-old woman met with a traffic accident and was admitted to our institution with epistaxis and accomapanied with shock. Angiography on day 2 showed carotidcavernous fistula.

Basilar trunk aneurysms with associated fenestration treated by using Guglielmi detachable coils: two cases reports.

Basilar trunk saccular aneurysms associated with fenestration are infrequent. Surgical treatment of a basilar trunk aneurysm is difficult because of its anatomic environment and complicated surgical exposure. We experienced two cases of basilar fenestration aneurysm, and the patients were treated using Guglielmi detachable coils.

Cervical extradural en-plaque meningioma.

A 22-year-old woman presented with a very rare extradural en-plaque spinal meningioma manifesting as right hemiparesis and gait disturbance. Magnetic resonance imaging revealed a well-enhanced lesion extending from the C-1 to C-5 vertebral levels, compressing the cord dorsally. Computed tomography revealed a slightly enhanced mass with calcification in the spinal canal, advancing in all directions except anteriorly.

Intradural retroclival chordoma without bone involvement - case report.

A 63-year-old, previously healthy man presented with a rare large intradural retroclival chordoma without bone involvement. Computed tomography showed that the tumor was completely intradural and did not involve the bone, as confirmed at intraoperative inspection. The tumor was totally excised via the anterior transpetrosal approach.

Effect of gefitinib on brain metastases from non-small cell lung cancer.

Two patients with non-small cell lung cancer presented with multiple brain metastases. They received gefitinib orally for the treatment of the primary lung lesions. About one month later, the brain metastases unexpectedly disappeared or became smaller.

[Putaminal hemorrhage in a case of Turner's syndrome with hyperaldosteronemia].

A case of Turner's syndrome complicated with intracerebral hemorrhage in a 21-year-old female is presented. The patient experienced acute onset of unconsciousness and the left-sided hemiparesis due to the right-sided putaminal hemorrhage. Severe hypertension was seen at the hospitalization.

Brain metastases from urachal carcinoma.

We present a case of brain metastases of the urachal carcinoma, which is extremely rare and malignant. Contrast-enhanced MRI was employed to detect them. A large mass was removed surgically and 4 other small metastases were treated by gamma knife radiosurgery.

Giant frontal mucocele extending into the anterior cranial fossa.

The authors report a patient with a huge frontal mucocele presenting with transient left hemiparesis. Magnetic resonance imaging and computed tomography showed the huge frontal mucocele arising from the frontal sinus extending to the anterior cranial fo ssa. Right middle cerebral artery stenosis was seen on the carotid angiography.