Laparoscopic approach for port site mass diagnosed as a Schloffer tumor following surgery of ascending colon cancer

Abstract

Schloffer tumor is a foreign body granuloma that develops in the subcutaneous layer of the abdomen over several months to several years after surgery due to sutures. Here, we performed a laparoscopic resection for a benign Schloffer tumor that showed positive F‐18 fluorodeoxyglucose (FDG) positron emission tomography (PET) at the port site of a laparoscopic right hemicolectomy for advanced colon cancer. We report a case in which systemic chemotherapy was avoided as a result of the histological examination following the laparoscopic approach. A 66‐year‐old female, who underwent laparoscopic right hemi colectomy for stage IIIA ascending colon cancer, was revealed an enhanced mass at the right side of the abdominal subcutaneous layer. PET examination showed a high accumulation of FDG. Laparoscopic tumor resection was performed. Pathological findings reported the formation identical to the Schloffer tumor. Schloffer tumor, which is rare, should be considered as one of the differential diagnoses for tumor with FDG‐PET positivity at the port site during the postoperative surveillance period of colorectal cancer.

Polymer clip granuloma mimicking lymph node recurrence: a case report

“…This in turn recruits fibroblasts to encapsulate the foreign body in the collagen matrix [ 11 ]. Our review of case reports on PubMed using keywords “foreign body granuloma” and “colon cancer or colorectal cancer” revealed that silk sutures were primarily responsible for most cases of foreign body granuloma following colorectal cancer surgery [ 1 – 5 , 7 , 12 – 14 ]. Table 1 shows the recent English case reports of foreign body granuloma after colorectal cancer surgery with the present case indicated as No.…”

“…Foreign body granulomas are inflammatory reactions that may occur postoperatively when surgical materials are left inside the body. Conventionally, silk sutures are the primary cause of intra-abdominal foreign body granulomas [ 1 – 7 ]. They can be incidentally discovered on computed tomography (CT) images in patients who have undergone cancer surgery, occasionally leading to a misdiagnosis of cancer recurrence [ 1 – 6 ].…”