background: the sentinel lymph node (sln) is defined as the first chain node in the lymphatic basin that receives primary lymphatic flow. if the sln is negative for metastatic disease, then other nodes are expected to be disease-free. sln techniques have been extensively applied in the staging and treatment of many tumors, including melanoma, breast and vulvar cancers. this study aims to evalua...

background: although multifocal and multicentric breast cancers are a common entity, their clinical behavior is not well characterized. with the widespread use of mammographic screening and improved sensitivity of imaging modalities, the detection of multifocal and multicentric breast cancers is likely to continuously increase. many studies have consistently shown a correlation between multifoc...

BACKGROUND AND AIM: The aim of this study was to determine the incidence and relative frequency of oral and pharyngeal cancers in Kermanshah, Iran, from March 1993 until March 2006.METHODS: The data used in this epidemiologic study were extracted directly from pathology records registered in 12 (all) public and private pathology centers of Kermanshah province during the 13-year study period. Th...

Background: Gastrointestinal Cancers are one of the most important causes of mortality of patients in the world as well as in our country. The North of Iran is in Asian belt of esophagus cancer in addition, in other areas of our country gastric cancer is the most common GI Cancer. Because GI Cancers are common in Lorestan, we decided to study them in patients undergo endoscopy and colonoscopy i...