common causes of left upper quadrant pain, and which abdominal organs are often involved
- • Spleen—splenic infarct, splenomegaly, splenic abscess
- • Stomach—peptic ulcer disease, gastritis, gastric outlet obstruction, gastroparesis
- • Pancreas—pancreatitis, pancreatic pseudocyst
- • Small bowel—obstruction, ileus, inflammatory bowel disease
