Publications by authors named "K Muneda"
Dissecting aneurysms of the posterior cerebral artery (PCA) are rare, especially those at the P1 segment. Here, we describe the case of a 57-year-old woman with a subarachnoid hemorrhage (SAH). Computed tomography angiography (CTA) and digital subtraction angiography (DSA) revealed a small (3 mm) dissecting aneurysm with the typical pearl-and-string sign at the right P1 segment.
View Article and Find Full Text PDFArticle Synopsis
- Limited data on plant species has hindered accurate projections of extinction risks, making it difficult to assess the scale of the crisis.
- The study presents the first quantitative forecast of plant species loss in Japan, estimating that 370 to 561 vascular plant taxa could go extinct in the next century if current population declines continue.
- Current protected areas in Japan are inadequate, as they can only protect less than 60% of local plant populations, highlighting that expanding protected areas is necessary but insufficient to prevent further declines.
We report a case of a true posterior communicating artery aneurysm. A 51-year-old male suffered a subarachnoid hemorrhage with severe headache and vomiting. A true posterior communicating artery aneurysm was recognized after repeated angiography on the seventh day.
View Article and Find Full Text PDFWe report a case of cerebral air embolism that occurred after chest trauma. The diagnosis was confirmed by CT and skull roentgenogram which demonstrated air bubbles in intracranial arteries. It is well recognized that cerebral air embolism is caused by various diagnostic and therapeutic procedures, and trauma.
View Article and Find Full Text PDFIntracerebral calcifications, especially in the basal ganglia, are observed in many kinds of diseases. A 41-year-old man is reported, who suffered from an acute epidural hematoma and underwent surgery to remove the hematoma. We detected very extensive intracerebral calcification on CT.
View Article and Find Full Text PDF