Objective To study non-enhanced computer tomographic features of chest imaging in 302 patients with Corona Virus Disease 2019 (COVID-19) in Blinded . Material and method A retrospective analysis of non-enhanced computer tomographic scans has been performed in the main center for patients diagnosed with COVID-19 in Blinded for those scanned from 13 th of March 2020 to 13 th of May 2020. Included scans were routinely performed during 24 -hs of admission apart from having respiratory complaint. CT protocol included non-enhanced 1 mm slice thickness by Philips Brilliance Big Bore scanner (Philips; Amsterdam, Netherlands). All computer tomographic scans were reviewed by two senior radiologists with more than 8 years of experience each and senior registrar. Several factors have been thoroughly studied including patient age, gender, positive versus negative pulmonary findings, laterality of lung involvement, lobar distribution, pattern of pulmonary changes on initial and follow-up scans. Results The total number of patients evaluated was 302. There were 188 men and 114 women studied. Among the totally studied 302 cases; 181 cases (59.9%) showed no pulmonary changes. Positive findings were present in 121 patients with a total number of 191 computer tomographic scans including initial and follow-up scans. Positive findings were present in 51 female and 70 male patients (age range, 12 - 87 years; mean age ± standard deviation, 46.1 ± 16.5). Bilateral disease was more frequently encountered presented in 86 cases (71.1%), while unilateral disease showed two times more predilection for the right lung compared to the left. The incidence of lobar involvement in descending order: right lower (75.2%), left lower (71.9%), right upper (62.8%), left upper (60.3%) and right middle (50.4%). The incidence of the affected lobes on the initial scans were as follow: one (24 %), two (10.7 %), three (9.1 %), four (16.5 %) five (36.4 %). In cases with single lobar involvement (24%); the left upper and right middle lobes showed lowest incidence of involvement accounting for 10.3 % & 13.8 %, respectively; on the other hand, in cases with four lobar involvement (16.5%); the right middle lobe was most commonly spared in two third of cases (63.2 %). Several initial patterns of the pulmonary changes resulting from Corona Virus Disease 2019 (COVID-19) were present with a descending order; ground-glass pattern (96.7%), lenticular pattern (32.2%), Halo sign (15.7% %), rounded (14.9 %), nodular (10.7%), ground-glass with consolidation (8.3%), tree-in-bud (1.7 %) and pleural effusion (1.7 %). Pathologically-enlarged lymph node was not a feature of COVID-19. The total number of patients with positive findings having follow-up scans was 57 including single (45 patients) versus two (12 patients) f...