Anal implantation metastasis from carcinoma of the sigmoid colon and rectum--a risk when performing anterior resection with the EEA stapler?
D000230:Adenocarcinoma / Q000556:secondary*; D001005:Anus Neoplasms / Q000556:secondary*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009366:Neoplasm Seeding; D012004:Rectal Neoplasms / Q000601:surgery*; D013528:Surgical Staplers / Q000009:adverse effects*