Retzius and Bogros Space

Retzius Space

What is Retzius Space?

• Also called Retropubic space, Prevesical space or cave of Retzius
• It is an extraperitoneal space located posterior to the pubic symphysis and anterior to the urinary bladder
• It is a loose space with allows the bladder to fill and empty.
• It is separated from the anterior abdominal wall by the transversalis fascia and extends to the level of the umbilicus

What is Bogros Space?

• Also called retroinguinal space or Bogros’ space
• It is an extraperitoneal space situated deep to the inguinal ligament
• It’s limited by the fascia transversalis anteriorly, the peritoneum posteriorly and the iliac fascia laterally 
• This preperitoneal space communicates with prevesical space of Retzius. 
• It is divided into two compartments. 
• The medial compartment contains vasculature including the femoral artery and vein. 
• The lateral compartment allows for passage of the illiopsoas (primary hip flexor), allowing attachment to the femur, along with the femoral nerve.