###### Abstract  
The abdominal aorta enters the diaphragm at the level of the 12 th thoracic vertebra and gives branches such as the celiac trunk (CT), superior mesenteric, and inferior mesenteric arteries. The main aim of the present research study was to observe the CT with regard to (i) variations in the dimensions among different age groups compared to gender, (ii) the vertebral level of origin, and (iii) the variation in the branching pattern. This cross-sectional retrospective study was performed on 116 subjects (\(n=91\) males, \(n=25\) females) over one year. The CT was interpreted by using contrast-enhanced computed tomography angiography. The results were assessed using parametric and non-parametric statistical tests. The length and diameter between gender and the three age groups (i.e., 29 years and below, 30-39 years, and more than 40 years) were compared and a \(p\)-value of less than or equal to 0.05 was considered significant. There was a significant difference in the length (\(p=0.016\)) and diameter of the CT (\(p=0.05\)) among males and females, respectively. Moreover, there was a significant difference in the length (\(p=0.038\)) and diameter (\(p=0.013\)) of the CT among the three age groups. Individuals aged 30-39 years had the highest mean for the length of the CT, while patients aged 29 years and younger had the highest diameter. The most common level for CT origin was at the vertebral level of the 12 th thoracic vertebra (73.3%). Anatomical knowledge of the CT is important for diagnostic imaging, organ transplantations, and surgical and laparoscopic interventions.  
ab 2024 16 December 2024 18 December 2  
and they include pancreatic branches which supply the body and tail of the pancreas, short gastric artery which supplies the fundus of the stomach, and the left gastroepiploic artery which supplies the upper part of the greater curvature of the stomach. The LGA is related to the proximal part of the lesser curvature of the stomach and supplies part of the lesser curvature and the distal part of the esophagus. Also, it anastomoses with the right gastric artery that arises from the CHA. The CHA gives rise to the proper hepatic artery, gastroudenal artery, and right gastric artery. The proper hepatic artery divides into the left hepatic artery and right hepatic artery, which gives rise to the cystic artery. The gastroudenal duodenal artery gives rise to the superior pancreatouduodenal artery (SPDA) and right gastroepiploic artery. The SPDA supplies the upper part of the pancreatic head and the proximal part of the duodenum which is derived from the foregut. It also anastomoses with the inferior pancreaticoloudenal artery, a direct branch of the superior mesenteric artery, which supplies the lower part of the pancreatic head and the part of the duodenum distal to the opening of the major duodenal papilla (that is derived from the midgut). The right gastroepiploic artery supplies the lower part of the greater curvature of the stomach. The right gastric artery supplies the lower part of the lesser curvature of the stomach.  
Knowledge of the anatomy and variations of the artery is of great importance, especially when performing gastric, hepato-biliary, pancreatic, and splenic surgeries that might require the ligation of one of its branches. Hence, sound knowledge of the anatomy of the CT is important for surgeons [5].  
Previous research has described variations in the CT among individuals and populations. Many of the previously conducted studies were carried out on cadavers. The present study aimed to investigate the variations of the CT by assessing the variations in the dimensions of the artery, the vertebral level at which it originates, and the branching pattern that the patient demonstrates.