The lesser curvature is the short, concave right border of the stomach, running from the oesophagus to the pylorus. The lesser omentum attaches along it, and the left and right gastric vessels run beside it.
| Location | Right (medial) border of the stomach, facing the liver |
|---|---|
| Parts |
|
| Nerve Supply | Anterior and posterior vagal trunks (gastric branches); Coeliac plexus |
| Blood Supply | Left gastric artery; Right gastric artery |
| Venous drainage |
|
| Lymphatic drainage |
|
Provides a short route for food and fluids and carries the main nerves and vessels of the stomach.
Benign gastric ulcers are most common on the lesser curvature, especially near the angular incisure. Highly selective vagotomy and sleeve gastrectomy are planned along this border, and the vagal branches here matter for stomach emptying.
An ulcer often found on the lesser curvature, which may bleed or perforate.
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