جستجوی مقالات مرتبط با کلیدواژه "انستیتو کانسر" در نشریات گروه "پزشکی"

Gastric cancer (GC) is one of the most common cancers in the world. Despite of improvements in cancer treatment, survival rate of these patients is low. There are various factors that influence on the recurrence. The aim of this study was to assess the survival of the gastric cancer patients with relapse and determine the related risk factors. A total of 93 gastric cancer patients with relapse who entered from 21 March 2003 to 21 March 2007 to the cancer institute of Imam Khomeini Hospital (Tehran) were surveyed in this study. The survival time was considered monthly from the time of cancer diagnosis up to death or end of study. The effect of various risk factors such as gender, diagnosis age, tumor site, pathologic stage of disease, type of treatment, degree of differentiation on survival patients after relapse are considered in this study. From 93 patients with relapse, 79.6% were men. 48.4% of patients were died during their follow up. The mean age from diagnosis to relapse was 15.7 ± 11.7 and half of the patients experienced relapse 11 months after the treatment. Survival mean and median were 14.5 and 9 months respectively. One, three and five year survival of the patients was 0.42, 0.19 and 0.13 respectively. Pathologic stage, age at diagnosis, degree of differentiation and using radiography were significantly related to the survival. Half of the patients experienced relapse in the first year following their treatment. Thus, monthly referral of patients is necessary for timely diagnosis.

The present study aims to report osteosarcomas of the maxillofacial area between 1991 and 2000 in two important referral centers of Tehran: Cancer institute of Iran and Taleghani hospital. Method & Material: All relevant data were recorded from files of patients with a final diagnosis of osteosarcoma and registered in a descriptive manner in prepared data sheets. Among the 42 cases of maxillofacial osteosarcoma, 24 (57.1%) were male and the remaining 18 (42.9%) were female. Their average age was 34.1 years. Maxilla to mandible ratio of involvement was 1.05. Swelling was the main chief complaint (88.5%) and 96.3% of the cases could be categorized as conventional. Most of them (75%) were chondroblastic histologically. A total of 212 cases of osteosarcoma other than in jaws had been registered during the same period. They were 18.81 years old on average and comprised 144 males (68.2%) and 67 females (31.8%). Histologically, they were chiefly chondroblastic (35.3%). In general, jaw involvement constituted 16% of the whole body involvement. The mean age was significantly higher in tumors of the jaws and they also showed a significantly higher percentage of involvement by the chondroblastic subtype.