We compare histological grading of Daumas - Duport and Kernohan for 122 cases of astrocytomas diagnosed at the Pathology Department of Cho Ray Hospital from June 1998 to June 1999 and we have found that in 122 cases, there are 11 cases which differ in grading between Daumas - Duport and Kernohan, most of them are grade 1 or 2 (3 cases), grade 3, 4 (5 cases) and 1 case grade 3 (Kernohan), grade 2 (Daumas - Duport); 2 case grade 2 (Kernohan) and grade 3 (Daumas - Duport).