Epigastric Region, Gross Anatomy, Anterior View

Description

Centered between the costal margins and the subcostal plane, the epigastric region is outlined on the anterior abdominal wall from the xiphoid process and inferior sternum down toward the umbilical region, bounded laterally by the right and left midclavicular lines. Superficial landmarks include the linea alba in the midline, the paired rectus abdominis muscles with their tendinous intersections, and the surrounding aponeuroses of external oblique, internal oblique, and transversus abdominis. Deep to this surface topography, the proximal stomach and pylorus lie left of midline, the left lobe of the liver crosses the upper epigastrium, and the pancreas and abdominal aorta project posteriorly in the upper retroperitoneum. Clinically, epigastric pain drives a short differential with high stakes: peptic ulcer disease and gastritis centered around the pylorus, pancreatitis radiating posteriorly, and an abdominal aortic aneurysm presenting with midline pulsation. Palpation in this region also helps localize an epigastric hernia, where preperitoneal fat or peritoneal sac protrudes through a linea alba defect between the xiphoid and umbilicus. Surface mapping matters in procedural work too, since upper midline trocar placement and subxiphoid incisions demand respect for the linea alba, rectus sheath planes, and the superior epigastric vessels descending deep to rectus abdominis. Use this artwork for gross anatomy and surface anatomy teaching in medical, nursing, and PA curricula, or as a clean reference figure for textbook chapters on abdominal regions, clinical examination, and acute abdominal pain localization in adult women. It also fits patient-facing materials that need correct epigastrium boundaries without crowding the frame with unrelated quadrants. Anatomical accuracy verified by SciePro's Medical Advisory Board.