Intra-Abdominal Abscesses By Parswa Ansari, MD, Hofstra Northwell-Lenox Hill Hospital, New York Reviewed / Revised Apr 2023 View Patient Education Etiology Symptoms and Signs Diagnosis Treatment Prognosis Key Points More Information Topic Resources Pelvic Abscess (CT Scan) Intra-Abdominal Abscesses Abscesses can occur anywhere in the abdomen and retroperitoneum.