In order to provide a basis for meaningful exchange of information among those treating cholesteatoma, the Committee on Nomenclature of the Japan Otological Society (JOS) was appointed in 2004 to create a cholesteatoma staging system as simple as possible to use in clinical practice in Japan. Following the announcement of preliminary criteria for the staging of pars flaccida (attic) cholesteato...

Thymic epithelial tumors usually are broadly classified into two main categories: thymoma and thymic carcinoma. In adults, thymomas are the most common primary tumor in the anterior mediastinum.[2] A large variety of paraneoplastic or parathymic syndromes may suggest the presence of a thymoma.[3] Myasthenia gravis coexists in approximately 30% to 40% of patients with thymoma.[4] It is still unc...

PURPOSE The aim of this study was to compare survival of patients with uterine sarcomas using the 1988 and 2008 International Federation of Gynecologists and Obstetricians (FIGO) staging systems to determine if revised 2008 staging accurately predicts patient survival. MATERIALS AND METHODS A total of 83 patients with leiomyosarcoma and endometrial stromal sarcoma treated at Yonsei University...

We aimed to investigate the prognostic value of postpathological characters in nonmetastatic breast cancer (NMBC) patients who received preoperative radiotherapy (PRT) followed by mastectomy (MAST).We conducted retrospective analyses using the data collected from the Surveillance, Epidemiology, and End Results program of the National Cancer Institute. Univariate and multivariate analyses were p...

Accurate disease staging of patients with pancreatic cancer is essential to divide patients into prognostic subgroups, to allow delivery of stage-specific therapies, and to facilitate meaningful discussions between physicians and patients regarding management and expected outcomes. The tumor-node-metastasis staging system of the American Joint Commission on Cancer has undergone significant revi...

the presence of anatomic variations of paranasal sinuses must be noted in order to attain a full understanding and accurate diagnosis of chronic sinusitis. the frequency of anatomic variations in chronic sinusitis is different in various studies. the purpose of this study is to assess the frequency of anatomic variations in chronic sinusitis patients admitted to otolaryngology ward of shahid sa...

introduction: c - reactive protein (crp) is an acute-phase plasma protein that can be used as a marker of activation of the immune system. in response to several inflammatory reactions,the concentration of crp increases and recently have been applicated as a cancer detector in some studies. we aimed to evaluate the relation between crp level and the staging and grading of gastric and colon mali...

Lung cancer is the leading cause of cancer related deaths in the United States with a 5 year survival of only 15%. [1] The International Association for the Study of Lung Cancer (IASLC) issued a 7 edition of the TNM staging system for lung cancer in 2007. [2] It includes several revisions which better align TNM staging with prognosis and in some cases with treatment. There have been revisions i...

BACKGROUND The validity of N classification of the 7th edition of the American Joint Committee on Cancer/Union Internationale contre le Cancer (AJCC/UICC) tumor-node-metastasis (TNM) staging system is still under debate. The purpose of this study was to evaluate the prognostic efficacy of the 7th edition of the AJCC/UICC TNM staging system (focusing on N stage), in comparison with the 6th editi...

PURPOSE We previously reported on a staging system and prognostic index (PITH) for portal vein tumor thrombosis (PVTT) in hepatocellular carcinoma (HCC) patients treated with radiotherapy (RT) at a single institution. The aim of this study is to validate the PITH staging system using data from patients at other institutions and to compare it with other published staging systems. MATERIALS AND...