Collision tumors of the sellar region are relatively uncommon and consist mainly of more than one type of pituitary adenoma or a cyst or cystic tumor. The association of a pituitary adenoma and a craniopharyngioma is particularly rare. This study describes a rare occurrence in which a pituitary adenoma and a craniopharyngioma coexisted in the sellar region. The case involves a 47-year-old woman...

O6-methylguanine-DNA methyltransferase (MGMT) activity is responsible for temozolomide (TMZ) resistance in patients harboring aggressive pituitary adenomas. Recently, disulfiram (DSF) has been shown to induce the loss of MGMT protein and increase TMZ efficacy in glioblastoma cells, while CD133+ nestin+ cells isolated from the cell population have been implicated as pituitary adenoma stem-like c...

The classification of pituitary tumors is frequently updated to optimize guidance for clinical treatment based on current knowledge. To date, the World Health Organization conducts periodic expert review consensus meetings and publishes results. These include recommendations behavior more aggressive, high Ki-67 index (>3%)pituitary. A Knosp grade (>3) associated with a risk recurrence. We repor...

OBJECTIVE Expression of pituitary homeobox 2 (PITX2) is significantly elevated in pituitary adenoma tissues, which also has lower microRNA (miR)-21 expression, indicating possible tumor-suppression role of miR-21. Bio-informatics analysis revealed targeting onto 3'-UTR of PITX2 by miR-21. This study aims to investigate the role of miR-21/PITX2 expression in proliferation and apoptosis of pituit...

Pituitary adenomas, monoclonal in origin, are the most common intracranial neoplasms. Altered gene expression as well as somatic mutations is detected frequently in pituitary adenomas. The purpose of this study was to detect differentially expressed genes (DEGs) and biological processes during tumor formation of pituitary adenomas. We performed an integrated analysis of publicly available GEO d...

OBJECTIVE To investigate the relationship between survivin expression and invasiveness of pituitary adenoma. METHODS A total of 66 patients, on whom trans sphenoidal surgery had been performed between July 2006 and March 2008, were enrolled in our study at the Department of Neurosurgery in Shandong Provincial Hospital and Jinan Central Hospital, Shandong, P. R. China. All patients were divide...

PURPOSE The aim of this study was to compare the behavioral uptake of a normal gland and a pituitary adenoma and to assess the ability to diagnose pituitary adenoma by means of technetium-99m-hexakis-2-methoxy-isobutyl-isonitrile (MIBI) single photon emission computed tomography (SPECT). METHODS The study included 15 patients with pituitary adenomas (mean age = 44.0 years, range 19-63) and 15...

OBJECTIVE To study the regional oxygen saturation (rSO(2)) of pituitary adenomas, in comparison with that of the pituitary gland. METHODS Microspectrophotometric (MSP) measurements of rSO(2) in adenomas and pituitary tissue were performed for a series of patients undergoing first-time transsphenoidal pituitary adenoma surgery, in a standardized anesthesia setting. The areas of measured tissue...

Received: 3 September 2010, Accepted: 13 October 2010 Corresponding author: Eun Jig Lee Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 250 Seongsan-ro, Seodaemoon-gu, Seoul 120-752, Korea Tel: +82-2-2228-1983, Fax: +82-2-364-3636, E-mail: [email protected] Thyrotropin (TSH)-secreting pituitary adenoma is a very rare disease. In o...