PATHOLOGY

Detailed explanation-1: -The kidneys are located behind the peritoneum, and so are called retroperitoneal organs. They sit in the back of the abdomen between the levels of the T12 and L03 vertebrae. The right kidney is slightly lower than the left kidney to accommodate the liver.

Detailed explanation-2: -Each kidney is about the size of a closed fist. They are located retroperitoneally on the posterior abdominal wall and are found between the transverse processes of T12 and L3. Both of the upper poles are usually oriented slightly medially and posteriorly relative to the lower poles.

Detailed explanation-3: -The area in the back of the abdomen behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen). The organs in the retroperitoneum include the adrenal glands, aorta, kidneys, esophagus, ureters, pancreas, rectum, and parts of the stomach and colon.