Summary Gastroenteropancreatic neuroendocrine tumors are a heterogeneous group of tumors. There several classification systems, and all them have been validated.The article aims to summarize the existing systems gastroenteropancreatic tumors.A critical evaluation was based on data available from studies.The European tumor society is one with clinical benefits.The lack unified creates incomplete...

background: tumors involving the hand skeleton are rare. however, a basic knowledge of hand tumors is necessary for every clinician. this is due to the importance of distinguishing typical benign tumors from life or limb threatening malignant ones. methods: this study is a review of 99 cases of osseous hand tumors presented to the department of orthopedic surgery, imam khomeini hospital in tehr...

Introduction: Differentiation of benign and malignant liver tumors is very important for finding appropriate treatment procedure. Human eyes sometime are not able to diagnose the type of liver tumor. Texture analysis is considered as a suitable method to increase the diagnostic power of medical images. In this study texture analysis is employed in order to classification of ben...