Left hiatus for thoracic splanchnic nerves

The left thoracic splanchnic nerves, comprising the greater, lesser, and least splanchnic nerves, exhibit significant anatomical variability as they pass through the diaphragm but the most common pattern observed in anatomical studies is that these nerves pass through a single location in the left crus of the diaphragm, called the left hiatus for thoracic splanchnic nerves, rather than through three separate locations as often depicted in traditional anatomical illustrations.