Lymph Node Involvement in Deep Infiltrating Intestinal Endometriosis: Does It Really Mean Anything?

Area of Science:

• Gastroenterology
• Gynecology
• Surgical Pathology

Background:

• Endometriosis is a condition where tissue similar to the lining of the uterus grows outside the uterus.
• Intestinal endometriosis can cause significant symptoms and may require surgical intervention.
• The role of lymph node involvement in the prognosis of intestinal endometriosis is not well understood.

Purpose of the Study:

• To investigate the correlation between the severity of endometriosis and lymph node involvement in patients undergoing colorectal surgery.
• To determine if lymph node status impacts disease recurrence or other clinical parameters.

Main Methods:

• Retrospective observational study.
• Inclusion of 140 patients who underwent laparoscopic segmental rectal resection for intestinal endometriosis.
• Classification into two groups based on histopathological analysis: 70 with lymph node involvement and 70 without.

Main Results:

• No statistically significant correlation was found between lymph node positivity and rates of intestinal stenosis, histopathological infiltration, or intestinal recurrence.
• A weak correlation was observed between lymph node positivity and preoperative CA-125 levels.
• Lymph node involvement in resection specimens did not appear to alter the natural disease progression.

Conclusions:

• The presence of lymph node involvement in intestinal resection specimens for endometriosis does not influence the disease's natural history.
• The underlying reasons for lymph node involvement in these cases require further investigation.