QS Study

Relations of the Right Lateral Surface of the Liver

The liver is the largest solid organ and the largest gland in the human body. It is located below the diaphragm in the right upper quadrant of the abdominal cavity. It is a metabolically active organ accountable for many vital life functions. It carries out over 500 essential tasks.

Relations of the right lateral surface of the liver –

(A) In the upper 1/3rd

  • The diaphragm,
  • Right lung & pleura,
  • 7th to 8th ribs.

(B) In the middle 1/3rd

  • The diaphragm,
  • The costodiaphragmatic recess of pleura,
  • 8th to 10th ribs.

(C) In the lower 1/3rd

  • The diaphragm,
  • 11th rib

Fig: a right lateral surface of the liver

The liver is intimately related with the diaphragm:

Because the liver is developed from hepatic diverticulum this mixes together with the septum transversum and forms parenchymatous tissue of the liver. The central tendon of the diaphragm is also developed from the septum transversum. Conventionally the diaphragmatic surface is further subdivided into superior, anterior, right lateral, and posterior surfaces, however, there’s no distinct difference between these surfaces.

Clinical importance of right surface:

In order to avoid the injury to the lung, sometimes needle biopsy of the liver is approached in the right lateral surface through the right 9th or 10th intercostal spaces at the mid-axillary line during forced expiration. A large volume of the liver (80%) can be taken away safely because healthy hepatocytes have a great ability of regeneration. The liver can regrow to its initial size inside 6-12 months.