[Two Cases of Port-Site Recurrence after Laparoscopic Surgery for Colorectal Cancer]

Area of Science:

• Oncology
• Surgical Oncology
• Minimally Invasive Surgery

Background:

• Port-site recurrence is a rare but specific complication of laparoscopic surgery.
• Colorectal cancer surgery, both laparoscopic and robot-assisted, carries a risk of such recurrences.
• Early detection and management are crucial for patient outcomes.

Purpose of the Study:

• To report two distinct cases of port-site recurrence after minimally invasive colorectal cancer surgery.
• To highlight the clinical presentation and diagnostic findings of these rare events.
• To contribute to the understanding of recurrence patterns in laparoscopic and robot-assisted colorectal procedures.

Main Methods:

• Case report of two patients diagnosed with port-site recurrence.
• Review of clinical history, surgical procedures (laparoscopic and robot-assisted), and follow-up imaging (CT scans).
• Pathological examination of excised abdominal wall tumors to confirm metastatic adenocarcinoma.

Main Results:

• Case 1: A 57-year-old woman developed port-site recurrence 37 months after laparoscopic surgery for ascending colon cancer.
• Case 2: A 74-year-old woman experienced port-site recurrence 20 months after robot-assisted surgery for rectal cancer, following treatment for liver metastasis.
• Both cases involved en bloc excision of the abdominal wall tumor with pathological confirmation of adenocarcinoma metastasis.

Conclusions:

• Port-site recurrence can occur years after minimally invasive colorectal cancer surgery.
• These recurrences present as localized abdominal wall masses at port sites.
• Prompt surgical excision and pathological confirmation are essential for diagnosis and management.