Hemicolectomy right, open

Midline abdominal incision passing the umbilicus on the right.
Transection of the subcutaneous tissue and fascia with monopolar diathermy.

After transection of the peritoneum, insert a suprapubic catheter into the bladder.
Set up the surgical field with the retractor system.

Gain an overview of the size and extent of the tumor and any abdominal metastases.

First incise the peritoneum lateral to the cecum and ascending colon, then free the ascending colon in the avascular layer from the retroperitoneum anterior to the right kidney.

First, completely mobilize the ascending colon with the root of the mesentery up to the duodenum, then free the duodenum and mobilize the head of the pancreas.