title: Anal metastasis from carcinoma of the lung: report of a case.
abstract: We report herein the case of a 75-year-old man who developed anal canal metastasis from squamous cell carcinoma of the lung. Initially, he underwent a right middle and lower lobectomy combined with left atrial wall resection under cardiopulmonary bypass. He presented 3 months later with an anal polyp which had prolapsed and bled, for which he underwent a transanal polypectomy. Histologically, the polyp was classified as squamous cell carcinoma and considered to be a metastasis from the primary lung cancer. He is presently well with no signs of recurrence 9 months after his initial operation. To our knowledge, there has been no other case of anal metastasis from lung cancer ever reported.
authors.affiliation: First Department of Surgery, Nagasaki University School of Medicine, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawahara
authors.forename: S
authors.initials: S
authors.lastname: Akamine
authors.forename: T
authors.initials: T
authors.lastname: Takahashi
authors.forename: A
authors.initials: A
authors.lastname: Nakamura
authors.forename: H
authors.initials: H
authors.lastname: Kusano
authors.forename: T
authors.initials: T
authors.lastname: Nakagoe
authors.forename: T
authors.initials: T
authors.lastname: Nakazaki
authors.forename: H
authors.initials: H
authors.lastname: Ayabe
authors.forename: M
authors.initials: M
authors.lastname: Tomita
mesh_terms: D000368:Aged; D001003:Anal Canal / Q000473:pathology; D001005:Anus Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000556:secondary / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D007417:Intestinal Polyps / Q000473:pathology / Q000601:surgery; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D013997:Time Factors