Background: Metastasis and recurrence of colorectal cancer after treatment is attributed to stem cells. The aim of this study was to determine the relationship between the expression of stem cell marker CD166 in colorectal cancer by immunohistochemistry and clinicopathologic parameters.Methods: From 2006 to 2012, 121 colectomy specimens of patients with colon cancer that were operated in Babol...

schwannoma is a solitary, slow growing,  benign tumour of the peripheral  nerve sheath, and it is most common locations are the head, neck, the flexor surfaces of the extremities, retroperitoneal and posterior mediastinium. external female genital organs are the least common location site of the schwannoma. only a few cases of vulvar schwannoma have been reported.we report 65 year- old woman pr...

the paranasal sinuses are known to be a rare location for metastasis. renal cell carcinoma (rcc) is the most frequent primary tumor to metastasize to the sinonasal region, followed by lung and breast cancer. in particular, clear cell type rcc, which represents approximately 85% of rccs, is characterized by early metastasis, and it sometimes spreads to unusual sites (1, 2). metastatic tumors in ...

OBJECTIVE The objective of this study was to evaluate the safety and therapeutic efficacy of percutaneous radiofrequency (RF) ablation for the treatment of hepatocellular carcinomas (HCCs) adjacent to the gallbladder with the use of internally cooled electrodes. MATERIALS AND METHODS We retrospectively assessed 45 patients with 46 HCCs (mean size, 2.2 cm) adjacent to the gallbladder (<or=1.0 ...

OBJECTIVE Ependymomas are rare intracranial neuroepithelial tumors and the most common location is intramedullary. The aim was to analyze the characteristics of these tumors to determine the patients' overall survival and the likelihood of recurrence. METHOD Data of clinical presentation, tumor location, duration of symptoms, degree of resection and complementary treatment of 34 patients with...

Background: Long noncoding RNAs (lncRNAs), as non-protein coding transcripts, play key roles in tumor progression and stemness state in many malignancies, as their aberrant expression has been found in gastric cancer (GC) as one of the most common cancer worldwide. LINC-ROR (large intergenic noncoding RNA regulator of reprogramming) identified as an involved lncRNA in human malignancies, howeve...

PURPOSE To find any influence on prognostic factors of index tumor according to predominant location. MATERIALS AND METHODS Prostate surgical specimens from 499 patients submitted to radical retropubic prostatectomy were step-sectioned. Each transverse section was subdivided into 2 anterolateral and 2 posterolateral quadrants. Tumor extent was evaluated by a semi-quantitative point-count meth...