title: Small solitary pulmonary metastasis detected before primary sigmoid colon cancer: report of a case.
abstract: We report the case of a 60-year-old woman referred to us after chest X-ray and mobile computed tomography screening detected an 8-mm nodule in right S2. Transbronchial aspiration cytology suggested a pulmonary metastasis from colorectal cancer. Therefore, we performed a colonoscopy and found a polypoid lesion, 2 cm in diameter, in the sigmoid colon. An analysis of a biopsy specimen from this polypoid lesion confirmed adenocarcinoma. Surgical resection of the primary sigmoid colon cancer was subsequently performed, followed 4 weeks later by a right S2 segmentectomy to remove the lung metastasis. The patient is currently well without any clinical signs of recurrence, 44 months after her operation.
authors.affiliation: Department of Thoracic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
authors.forename: Aki
authors.initials: A
authors.lastname: Ishikawa
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Motohashi
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Shibuya
authors.forename: Masayuki
authors.initials: M
authors.lastname: Baba
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Toyosaki
authors.forename: Hidemi
authors.initials: H
authors.lastname: Ohwada
authors.forename: Norio
authors.initials: N
authors.lastname: Saito
authors.forename: Kiminori
authors.initials: K
authors.lastname: Suzuki
authors.forename: Takehiko
authors.initials: T
authors.lastname: Fujisawa
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary*; D001706:Biopsy; D003110:Colonic Neoplasms / Q000473:pathology*; D003113:Colonoscopy; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary* / Q000601:surgery; D008875:Middle Aged