The abdomen is divided into four sections called quadrants. An abdominal mass may occur in the right upper quadrant, left upper quadrant, right lower quadrant, or left lower quadrant. The stomach ...

The left upper quadrant (LUQ) is the left upper abdominal region, starting from the chest's middle line to the left side of the ribcage and down to the level of the navel (belly button).

He also has diffuse large B-cell lymphoma, which was diagnosed after presenting with low back pain and having found a bulky left upper quadrant mass. He received etoposide, prednisone, vincristine ...

The body-mass index (the weight in kilograms divided ... with tenderness in the left upper quadrant. The liver edge was palpable 3 cm below the right costal margin; the spleen tip was also palpable.

Careful palpation should follow any of these methods (see Palpating the Left Upper Quadrant, below ... False-positive results can be due to colonic mass or stool in the splenic flexure.

A 52-year-old man with a history of coronary disease, hypertension, hyperlipidemia, and amphetamine abuse presents to the emergency department with left upper quadrant (LUQ) abdominal pain that ...

Left upper quadrant: Enlargement or tumor of the spleen, stomach (cancer), colon (colorectal cancer) or kidney (calculus, hydronephrosis) can cause a mass in this region. Epigastrium: Tumors of ...