What are retroperitoneal abscesses?

Primary abscesses :hematogenous bacterial spread, most commonly of Staphylococcus aureus Secondary abscesses :spread of infection from adjacent organs, mainly intestine Symptoms and signs : - Fever -Flank, abdominal, back, thigh pain -Leukocytosis CT scan :differentiate between retroperitoneal hematomas and tumors; abscesses Perform complete blood count; abdominal or pelvic CT scan with IV and oral contrast is essential