A computational study of N adsorption on aromatic metal MgM;(M=Be, Mg, and Ca) nanoclusters.

Metal nanoclusters have been considered as a new class of chemical sensors due to their unique electronic structures and the particular physicochemical properties. The interaction of N molecule with neutral and ionic magnesium nanoclusters Mg(q=0,±1), as well as neutral magnesium nanoclusters with the centrality of beryllium and calcium MgM (M=Be, Mg, and Ca) have been investigated using CAM-B3LYP/6-311+G(d) level of theory in the gas phase. The electronic properties of magnesium nanoclusters were significantly affected by the adsorption of N molecule.

Trans-nasal Trans-sphenoidal Endoscopic Resection of Spindle Cell Oncocytoma of Adenohypophysis: The First Case Report in a Child and a Review of Literature.

Spindle cell oncocytoma (SCO) is a rare tumor of adenohypophysis, arising from the sellar region. So far, about 35 cases of SCO in the sellar region have been reported. In this report, we present the first case of pediatric SCO and review the literature concerning the tumor origin, clinical presentations, radiological features, and treatment modalities.

Hard calcified intrasellar schwannoma mimicking pituitary adenoma: a case report and review of the literature.

Background: Intrasellar location of schwannoma is extremely rare, although intracranial schwannomas are common in the central nervous system. The aim of the present study is to describe a calcified intrasellar schwannoma case.

Materials And Methods: We represent a 45-year-old woman who had suffered from headaches; right side facial pain and visual disturbance which had worsen during the last week prior to admission.