Postoperative pelvic gas collections simulating pelvic abscess

Area of Science:

• Pelvic Surgery
• Radiology
• Gynecologic Oncology

Background:

• Post-operative imaging frequently reveals extraperitoneal gas collections in the pelvic soft tissues after abdominal hysterectomy.
• Distinguishing these common gas collections from pathological processes like pelvic infection or bowel injury is crucial for accurate patient management.

Purpose of the Study:

• To characterize the typical appearance of extraperitoneal gas collections following abdominal hysterectomy.
• To differentiate these benign findings from signs of pelvic infection or bowel injury.
• To compare the incidence of these collections after abdominal versus vaginal hysterectomy.

Main Methods:

• Review of post-operative imaging studies (e.g., CT scans) in patients who underwent abdominal hysterectomy.
• Radiological assessment of the location, extent, and characteristics of extraperitoneal gas collections.
• Correlation of imaging findings with clinical outcomes and surgical approach (abdominal vs. vaginal hysterectomy).

Main Results:

• Extraperitoneal gas collections are a routine finding in the pelvic soft tissues after abdominal hysterectomy.
• These collections typically exhibit a characteristic appearance that aids in differentiating them from pathological conditions.
• Similar extraperitoneal gas collections are not routinely observed following vaginal hysterectomy.

Conclusions:

• The presence of extraperitoneal gas in pelvic soft tissues is a common and expected finding after abdominal hysterectomy.
• Radiologists and clinicians should be aware of this benign finding to avoid misdiagnosis of pelvic infection or bowel injury.
• The surgical approach (abdominal vs. vaginal hysterectomy) influences the occurrence of these post-operative gas collections.