"posteriorly: bound by transversalis fascia"
"anteriorly: bound by posterior renal fascia (Zuckerkandl's fascia)"
"medially: bound by fusion of the posterior renal and transversalis fasciae with muscular fasciae"
"superiorly: compartment limited by the fusion of psoas and quadratus lumborum with the inferior phrenic fascia"
"inferiorly: opens into the pelvis1,3"
"Trauma: Retroperitoneal haemorrhage can extend into the PPS, producing posterior displacement of perirenal structures.4"
"Infection: Rarely, retroperitoneal abscesses or gas-forming infections may track into the PPS, helping identify the route of spread.3"
"Post-procedural: Following renal or spine interventions, air or fluid can accumulate in the PPS, an imaging clue for iatrogenic injury.2"
"The PPS is rarely a primary site of disease but may become secondarily involved in retroperitoneal haemorrhage, infection, or extension of pancreatic or renal pathology. Recognition of fluid or gas tracking into the PPS can serve as a marker of disease severity and spread, particularly in trauma and retroperitoneal infections.2,3,4"
"Post-procedural: Following renal or spine interventions, air or fluid can accumulate in the PPS, an imaging clue for iatrogenic injury.2"
"Radiographic Features"
"Clinical Relevance"
"Pathology Examples"
"Trauma: Retroperitoneal haemorrhage can extend into the PPS, producing posterior displacement of perirenal structures.4"
"Infection: Rarely, retroperitoneal abscesses or gas-forming infections may track into the PPS, helping identify the route of spread.3"
"Post-procedural: Following renal or spine interventions, air or fluid can accumulate in the PPS, an imaging clue for iatrogenic injury.2"
Expected headings
"Radiographic Features"
"Clinical Relevance"
"Pathology Examples"
"Post-procedural: Following renal or spine interventions, air or fluid can accumulate in the PPS, an imaging clue for iatrogenic injury.2"