THE EXPRESSION OF STEM CELL MARKERS (CD133, NESTIN, OCT4, SOX2) IN INVASIVE PITUITARY ADENOMAS.

Introduction: The pituitary gland serves as the center of the endocrine system. Stem cells are typically found in a specialized microenvironment of the tissue, called the niche, which regulates their maintenance, self-renewal, fate determination, and reaction to external influences. The aim of this study is to elucidate the role of stem cells in the initiation, invasion, and progression of pituitary adenomas.

Gallbladder perforation during elective laparoscopic cholecystectomy: Incidence, risk factors, and outcomes.

Objective: This study aimed to reveal the risk factors and outcomes of gallbladder perforation (GP) during laparoscopic cholecystectomy.

Methods: Videotapes of all patients who underwent an elective cholecystectomy at our department were retrospectively analyzed, and the patients were divided into two groups based on the presence of GP. The possible risk factors and early outcomes were analyzed.

J-pouch vs. side-to-end anastomosis after hand-assisted laparoscopic low anterior resection for rectal cancer: A prospective randomized trial on short and long term outcomes including life quality and functional results.

Purpose: To analyze the outcomes of j-pouch and side-to-end anastomosis in rectal cancer patients treated with laparoscopic hand-assisted low anterior resection.

Methods: Prospective trial on cases randomized to have a colonic j-pouch or a side-to-end anastomosis after low anterior resection. Demographics, characteristics of disease and treatment, perioperative results, and functional outcomes and life quality were compared between the groups.

Esthesioneuroblastoma located in the thoracic extradural space: Case report.

Objective: Esthesioneuroblastoma accounted for only 6% of the malignant nasal cavity neoplasms (ENB) is a rare tumor which originates from the olfactory epithelium. ENB's are locally agresive and can metastasize by lymphatic and hematogenous routes. A patient with the mass on the nasal dorsum was reported in this article.

Hand-Assisted versus Straight-Laparoscopic versus Open Proctosigmoidectomy for Treatment of Sigmoid and Rectal Cancer: A Case-Matched Study of 100 Patients.

To assess the efficacy of laparoscopic proctosigmoidectomy for cancer treatment, 25 patients who underwent hand-assisted laparoscopic resection during the study period (9/2006 - 7/2012) were matched to 25 straight-laparoscopic and 50 open-surgery cases. The patients who underwent hand-assisted resection had higher rates of preoperative cardiac disease and hypertension than did the straight-laparoscopy and open-surgery groups. Straight-laparoscopic surgery seems to provide faster convalescence compared with open surgery and hand-assisted laparoscopic surgery.