The CT scan of the abdomen and pelvis with and without contrast may be ordered by a doctor to:Diagnose or monitor the progression of diseases affecting the abdominal or pelvic organs, such as liver, kidney, or pancreatic cancer, inflammatory bowel disease, diverticulitis, or pelvic inflammatory disease.Identify any abnormalities in the abdominal and pelvic organs or blood vessels, such as tumors, cysts, or aneurysms.Evaluate trauma or injuries to the abdomen or pelvis.Assess the effectiveness of previous treatments for a condition.Monitor patients with chronic conditions or diseases affecting the abdominal or pelvic regions.