Stomach

Description

Left lateral thoracoabdominal anatomy frames the abdominal esophagus as it descends posterior to the mediastinal silhouette and passes through the esophageal hiatus of the diaphragm to join the stomach at the cardia. The gastric fundus lies superior and left, tucked beneath the left hemidiaphragm, while the body sweeps inferoanteriorly to the antrum and pyloric canal, which turn medially toward the duodenum. Along the medial border, the lesser curvature tracks toward the hepatogastric region, and the greater curvature bows laterally and inferiorly, defining the classic J shaped ventriculus. Ribs, thoracic vertebrae, and the adjacent costal margin provide bony orientation behind a semi-transparent body wall. This lateral profile matters because it clarifies the esophagogastric junction and the angle of His, a relationship that becomes clinically concrete in gastroesophageal reflux disease and sliding hiatal hernia, where proximal migration of the cardia through the hiatus alters the antireflux barrier. Surgeons and endoscopists also work off these landmarks when positioning for upper endoscopy, planning fundoplication, or interpreting a barium swallow that outlines the fundus and gastroesophageal junction against the diaphragm. A clean spatial read. It reduces guesswork. Use this illustration for gross anatomy teaching on foregut orientation, for GI physiology modules discussing gastric reservoir function in the fundus versus trituration in the antrum, and for clinical texts explaining reflux mechanisms, hiatal hernia morphology, and operative concepts such as mobilization along the greater curvature. It also fits patient education materials where a lateral view helps explain substernal symptoms tracing back to the esophagus and stomach. Anatomical accuracy verified by SciePro's Medical Advisory Board.