RT Book, Section A1 Doherty, Gerard M. A2 Doherty, Gerard M. SR Print(0) ID 1105490135 T1 Spleen T2 CURRENT Diagnosis & Treatment: Surgery, 14e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071792110 LK accesssurgery.mhmedical.com/content.aspx?aid=1105490135 RD 2024/04/19 AB The spleen is a dark purplish, highly vascular, coffee bean-shaped organ of mesodermal origin situated in the left upper quadrant of the abdomen at the level of the eighth to eleventh ribs between the fundus of the stomach, the diaphragm, the splenic flexure of the colon, and the left kidney (Figure 27–1). The adult spleen weighs 100-150 g, measures about 12 × 7 × 4 cm, and usually cannot be palpated. It is attached to adjacent viscera, the abdominal wall, and the diaphragm by peritoneal folds or “ligaments.” The gastrosplenic ligament carries the short gastric vessels. The other ligaments are avascular except in patients with portal hypertension or myelofibrosis.