| BRAF | 673 | 16144912 | - | Mutation | - | - | 20 (10 proliferative+ 10 secretory) | 97 (78 endometroid adenocarcinoma+ 12 serous papillary + 6 clear cell carcinomas) | 30 to 76 | - | Shinshu University Hospital | I (n=52); II (n=10); III (n=28); IV (n=7) | 1 (n=36); 2 (n=19); 3 (n=23) | | 20 (21%) and 1 (11%) had BRAF mutations | most of them at previously unreported sites. Twenty samples of normal endometrium and 21 samples of normal endometrium obtained from sites adjacent to neoplastic lesions had no BRAF mutations. There was no apparent difference in the prevalence of BRAF mutation among stages | histologic subtypes | 0 |