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Table 2 Definition of the four arbitrarily anatomical Abdominal compartments

From: Compartmental anatomical classification of traumatic abdominal injuries from the academic point of view and its potential clinical implication

  Intrathoracic Retroperitoneal True abdomen Pelvic abdomen
Organs involved Diaphragm (2%) Kidneys (18%) SI (12.3%) and LI (5%) UB (4%)
Liver (35%) Ureter (0.2%) ±UB (if full) Rectum (1.5%)
Spleen (32%) Pancreas (3.7%) ± Uterus(if gravid) Urethra (3%)
Stomach (1.4%) Aorta (1%)   Uterus (0.7%)
  Vena cava (0.7%)   
Diagnosis Inaccessible to clinical examination and needs imaging Very difficult, unless need CT, Angiography, IVP Significant abdominal physical signs. Difficult (extraperitoneal)
X-ray may help if free air +,FAST, ±Diagnostic Peritoneal Lavage
Mechanism of injuries    
Deceleration Hepatic laceration, vascular pedicles Renal arteries Mesenteric tear Splanchnic
Crushing effect Spleen and liver Kidneys   
External compression Hollow viscous(stomach)   Hollow viscous  
  1. Compartments: All data given in parenthesis as percent were collected from the present study, UB: urinary bladder; CT: Computed Tomography; IVP: Intravenous Pyelogram, SI: small intestine, LI: large intestine.