A 45-year-old male patient is involved in a high-speed motor vehicle collision. During transport, he complains of severe abdominal and back pain, with signs of hypotension and tachycardia. Upon further assessment, bruising is observed over the flank area (Grey-Turner's sign). Which retroperitoneal injury is most likely associated with these findings?
Retroperitoneal hemorrhage
Hollow organ perforation
Liver trauma
Splenic injury