These techniques are used only in exceptional cases of tumors in other localizations.

CLINICAL PRESENTATION: We report a case of a recurrent malignant frontal falx meningioma with encasement of both pericallosal arteries (PcaAs). During resection of the lesion, the left PcaA was sectioned and the right PcaA was occluded for manipulation and coagulation of the tumor. The occlusion was diagnosed

with indocyanine green videoangiography. A Y-shaped superficial Staurosporine cost temporal artery graft was obtained in the right side, and the anterior cerebral artery circulation was reconstructed using an intracranial-to-intracranial bypass in the following fashion: right A2 to superficial temporal artery Y-shaped graft for both PcaAs. The patient’s postoperative period was uneventful with no deficit, and the angiographic computed tomography showed the preservation of both PcaAs.

CONCLUSION: To the best of our knowledge, this nnicrosurgical reconstruction of the PcaAs has not been performed before in a meningioma or a complex aneurysm case. We think the use of a superficial temporal artery as an in situ graft is more straightforward compared with other interposition grafts such as the radial artery graft or saphenous vein graft.

The use of intracranial-to-intracranial techniques is the proper evolution of the use of classic extracranial-to-intracranial cerebral revascularization techniques.”
“Ultrastructural investigations of cells and organelles by transmission AMN-107 electron microscopy (TEM) usually lead to two-dimensional information of cell structures Selleckchem Veliparib without supplying exact quantitative data due to the limited number of investigated ultrathin sections. This can lead to misinterpretation of observed structures especially in context of their three-dimensional (3D) assembly. 3D investigations and quantitative morphometric analysis are therefore essential to get detailed information about the arrangement and the amount of subcellular structures inside a cell or organelle,

respectively, especially when the plant sample was exposed to environmental stress. In the present research, serial sectioned chloroplasts, mitochondria, and peroxisomes from first year spruce needles (Picea abies (L.) Karst.) were 3D reconstructed and digitally measured using a computer-supported image analysis system in order to obtain a detailed quantitative characterization of complete cell organelles including precise morphological data of drought-induced fine structural changes. In control plants, chloroplast volume was composed of 56% stroma, 15% starch, 27% thylakoids, and 2% plastoglobules. In drought-stressed chloroplasts, the relative volume of both the thylakoids and the plastoglobules significantly increased to 37% and 12%, respectively.