[A Case of Multiple Tumor Neurosurgery for Brain Metastasis of Colorectal Cancer].

We report a patient with brain metastasis of rectal cancer who underwent metastatic tumor resection 3 times. In March 2012, a 76-years-old man, diagnosed with Stage III a rectal cancer, underwent Hartmann's operation. The lung metastasis was confirmed in July and November 2013, surgical resection for pulmonary metastasis was performed 2 times.

[A Case of Primary Intracranial Epithelioid Hemangioendothelioma].

Epithelioid hemangioendotheliomas(EHEs)most commonly occur in the liver, lung, bone, and soft tissues, but rarely in the brain. Here, we describe a case of primary intracranial epithelioid hemangioendothelioma manifested by an epileptic attack. A 53-year-old woman with no previous convulsive history presented at our hospital after experiencing a seizure.

Detection of the microcatheter tip using a novel microguidewire during coil embolization of cerebral aneurysms - technical note - .

Detection of the position of the microcatheter tip is important for safe and effective coil embolization of cerebral aneurysms, but is sometimes difficult, especially in the final stage with a high density of embolized coils. We report a new technique to deduce the position of the microcatheter tip using a novel microguidewire during coil embolization of cerebral aneurysms. The novel microguidewire (ASAHI CHIKAI 10; Asahi Intecc, Nagoya, Aichi), with a radiopaque portion of 30 mm, is advanced into the microcatheter until the distal end of the radiopaque portion reaches the coil mass edge at the neck of the aneurysm.

[Prevalence and risk factors for silent lacunar infarct in white matter lesion--brain multiphasic screening].

To clarify difference of significant risk factors and that of prevalence with increasing age between white matter lesion (WML) and silent lacunar infarction (SLI), 946 brain check-up subjects were investigated. Twelve risk factors including age, sex, and hypertension were analyzed using multiple logistic regression analysis. A case of WML, which changed into infarction, was presented.