RUQ mass | LUQ mass |
Hepatomegaly Subphrenic abscess Periphrenic abscess Colon cancer Abdominal wall hematoma Hepatoma Renal cancer Adrenal cancer Hydrops of the gallbladder Fecal impaction |
Splenomegaly Abdominal wall hematoma Pancreatic tumor Gastric cancer Colon cancer Renal cancer Fecal impaction |
RLQ mass | LLQ mass |
Appendiceal abscess Psoas abscess Pyosalpinx Regional ileitis Intussusception Colon cancer Ovarian cancer |
Sigmoid diverticulitis Colon cancer Ovarian cancer Pyosalpinx |
Epigastric mass | Hypogastric mass |
Omental hernia Pancreatic tumors Pancreatic cyst Gastric carncinoma Pyloric stenosis Abdominal aortic aneurysm Retroperitoneal sarcoma Hepatomegaly |
Bladder cancer Gravid uterus Uterine fibroid Regional ileitis Urachal cyst |