The thorough knowledge of precise anatomy of the sellar parasellar and suprasellar regions and of nomal computed tomographic (CT) features in ghose areas are very important because there are many tiny but essen-tial structures in which pathology makes ony minute changes and so meticulous investigations are required. We performed direct coronal thin section CT scan of sellar and juxtasellar regions in 58 cases in order to evaluate normal CT features such as CT densities shapes and sizes of normal sellar and juxtasellar structures. The results obtained are as follows : 1. The CT densities of pituitary glands were 87$pm$23 in anterior lobe and 69$pm$22 in posterior lobe. The latter was significantly less dense than the former. Posterior lobes could be identified as oval low density area childbearing age mean height was 7.0$pm$1.7mm. Upper margins of pituitary glands were flat in 29 cases (50%), upward convex in 16 cases(28%) and upward concave in 13 cases (22%). Upper margins of pituitary glands were upward convex in 8/15 (53%) of young female of childbearing age. Pituitary densites were homogeneous in 36 cases (77%) and heterogeneous in 7 cases (15%) and 4 cases (7%) show focal pituitary low density that is greater than is greater than 3mm id diameter. 2. Moderate to severe degree of cistenrnal herniation was found in 10 cases (17%); only 1 case before the age of 30 and 9 cases after the age of 30. 3. The lateral margins of carvernous sinus were bilaterally flat in 42 cases (72%) bilaterally convex in 3 cases (5%) unillaterally convex in 12 cases (21%) and unilaterally concave only in 1 case (2%). The third cranial nerves were found as symmetric filling defects in superolateral aspect of anterior cavernous sinus in most of the cases the maximal size of which was 2.7$pm$0, 9mm in diameter and did not exceed 3.5mm. The other cranial nerves were less frequently identified as smaller defects within the cavermous sinus and usually not differentiated from one another.