نتایج جستجو برای: rectum cancer
تعداد نتایج: 915393 فیلتر نتایج به سال:
aim : this study aims to investigate some clinical and pathologic factors associated with the prognosis of patients with colon and rectum cancers separately. background : colorectal cancer is the most common cancer of the digestive system and also the fourth cause of cancer-related deaths around the world. different studies indicate that survival of patients with colorectal cancer has improved ...
background: this study assessed the optimal timing of computed tomography for detection of metastatic disease in locoregional lymph nodes in patients with rectal cancer who have undergone chemoradiotherapy. materials and methods: this observational retrospective study was performed in a single institution. all patients with locally advanced rectal cancer treated with chemoradiotherapy, followed...
background: colorectal cancer is the third cause of cancer death in western countries. age, inadequate diet, obesity, inactivity and genetic changes are some of the risk factors of colorectal cancer. correlation of genetic diversity in homologous recombination repair system with cancer was evaluated in many recent studies. this study was done to investigate the correlation of t241m polymorphism...
background: clinical and epidemiological variation was seen between the colon cancer (cc) and rectum cancer (rc). so, there is not so much data available about the epidemiological and clinicopathological differences and prognostic factors regarding to cc and cr in iran, we aimed to perform this study. methods: all cases of cc and rc referred to oncology and gastroenterology wards of taleghani g...
Background and Aim: Increased mortality rate�due to prostate cancer shows the growth of this disease.Prostate cancer is the second most widespread malignancy after lung cancer in men.It is important to use new methods in the radiation therapy of prostate cancer that are associated with lower exposure of the normal tissues. Nowadays, in most of the radiotherapy centers in our country, the Co-60 ...
Background: In prostate radiotherapy, changes in the volume of the bladder and rectum can influence dose delivery. In this study, cone-beam computerised tomography (CBCT) imaging was used to assess volumetric, and corresponding radiation dosimetric changes, for the bladder and rectum in patients with prostate cancer treated using VMAT. Materials and Methods: Treatment planning computed tomograp...
Background and Aim: Cancer is the second leading cause of death after heart disease in the United States. Colorectal cancer is the 4th most common cancer in the world. Nearly one million new cases per year of this disease occur worldwide. High levels of physical activity are associated with reduced risk of some cancers such as colon and breast cancers. The aim of this study was to determine the...
BACKGROUND/AIMS This study aimed to determine the epidemiological characteristics of colorectal cancer in Turkey. MATERIALS AND METHODS In this multicenter, prospective, and cross-sectional registry study, data for 968 patients with colorectal cancer from 21 centers in 7 geographic regions were analyzed. RESULTS Diagnosis was colon cancer in 662 (68.4%) and rectum cancer in 306 (31.6%) pati...
PURPOSE In SBRT for prostate cancer, higher fractional dose to the rectum is a major toxicity concern due to using smaller PTV margin and hypofractionation. We investigate the dosimetric impact on rectum using endorectal balloon (ERB) in prostate SBRT. MATERIALS AND METHODS Twenty prostate cancer patients were included in a retrospective study, ten with ERB and 10 without ERB. Optimized SBRT ...
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