Some morphological characteristics of esophageal cancer / Монголын Анагаах Ухаан

ABSTRACT

Goal To determine histological forms in the majority of esophageal cancer in Mongolian population. Materials and Methods: Analysis was done on 285 materials of esophageal cancer and esophageal pre cancer in 1998- 2002. Materials of studies were diagnosed by classification of WHO, 2006. Result: In world average age of developing esophageal cancer is 55 years which is similar with our study result. By histopathology site among Russian population squamocell carcinoma occurs in 96%, 3% for adenocarcinoma, 1% for undifferentiated carcinoma, but in our results 64.5%, 7%, 2.4% corresponding. For cancer topography site of esophageal precancer lesions, neoplasms and invasive cancers are occur in lower part of esophagus. It is a main cause of esophageal adenocarcinoma. Comparing N.I.Kolicheva study result, 43.1% for lower part of esophagus and 34.3% for middle third of esophagus which is similar with our study result. Conclusions 1. Esophageal disease and cancer occurs in female and male is 11.8. 2. Esophageal cancer located in inner third. 3. Most frequent path histology site of esophageal cancer is squamocell carcinoma (64.5%).