title: Peritoneal colon cancer metastasis to bilateral inguinal hernia repair sites: report of a case.
abstract: We report a rare case of peritoneal metastasis from colon cancer being found in the bilateral sites of inguinal hernia repair. The patient was an 85-year-old man who underwent colonoscopy for a positive fecal occult blood test, with a subsequent diagnosis of ascending colon cancer. He had undergone mesh plug repair for bilateral inguinal hernias at another hospital 6 years previously. We performed laparoscopy-assisted right hemi-colectomy and found nodes in the bilateral scars from the inguinal hernioplasty. Biopsy confirmed that both of the nodes were peritoneal metastasis, leading to the assumption that cancer cells disseminated within the abdominal cavity had been implanted at the repair sites, although the mechanism for this was unclear. A relationship between inflammation and peritoneal metastasis has been reported; thus, we speculated that local inflammation resulting from chronic stimulus of mesh plugs and peritoneal trauma caused peritoneal metastasis at the repair sites.
authors.affiliation: Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine Graduate School of Medical Science, 465 Kajii-cho Hirokoji Kawaramachi, Kamigyo-ku, Kyoto, 602-8566, Japan.
authors.forename: Michihiro
authors.initials: M
authors.lastname: Kudou
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Murayama
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Konishi
authors.forename: Ryo
authors.initials: R
authors.lastname: Morimura
authors.forename: Shuhei
authors.initials: S
authors.lastname: Komatsu
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shiozaki
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kuriu
authors.forename: Hisashi
authors.initials: H
authors.lastname: Ikoma
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kubota
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nakanishi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ichikawa
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Kazuma
authors.initials: K
authors.lastname: Okamoto
authors.forename: Chouhei
authors.initials: C
authors.lastname: Sakakura
authors.forename: Osamu
authors.initials: O
authors.lastname: Kojima
authors.forename: Eigo
authors.initials: E
authors.lastname: Otsuji
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D000369:Aged, 80 and over; D003082:Colectomy / Q000379:methods; D044682:Colon, Ascending; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D003131:Combined Modality Therapy; D006552:Hernia, Inguinal / Q000473:pathology* / Q000601:surgery; D059685:Herniorrhaphy / Q000009:adverse effects; D006801:Humans; D007249:Inflammation / Q000209:etiology; D010535:Laparoscopy; D008297:Male; D010534:Peritoneal Neoplasms / Q000209:etiology / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D013526:Surgical Mesh / Q000009:adverse effects; D016896:Treatment Outcome