It is the area in the back lateral to the lumbar vertebrae and between the rib cage and pelvis. The organs present in this area include the liver, the<unk>  kidney, half of the transverse colon and the ascending colon. Pain in this area is more likely to originate from the kidney especially if the pain is associated with fever, chills, blood in the urine, or frequent or urgent urination. However since many organs are in this area, other causes are possible.
Hepatomegaly (e.g.hepatitis, fatty liver, hemosiderosis, liver abscess, liver cirrhosis)
Kidney stones
Pyelonephritis<unk>  sided lumbago
Urolithiasis
Tumours (e.g. renal cell carcinoma)
Right flank pain
Left flank quadrant abdominal pain
Left lower quadrant abdominal pain
Right lower quadrant abdominal pain
Left upper quadrant abdominal pain
Right upper quadrant abdominal pain
Rebound tenderness
Testicular pain