title: Superficial-type endobronchial metastases from colon cancer: A case report.
abstract: Certain internal malignancies, including colon cancer, can develop endobronchial metastasis. The present study reports a case of colon cancer with superficial-type endobronchial metastases in a 76-year-old male. Chest computed tomography revealed small masses and infiltrates in each lung, with bilateral hilar lymph node swelling. Superficial endobronchial tumors in each of the bronchi were unexpectedly found by bronchoscopic examination. A biopsy specimen obtained from the endobronchial tumor was diagnosed as colon cancer. Superficial-type endobronchial metastasis from colon cancer is extremely rare, however, such metastasis should be considered for patients who have a history of colon cancer. There should be no hesitation in performing a bronchoscopic biopsy as an additional examination.
authors.affiliation: Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan.
authors.forename: Koichi
authors.initials: K
authors.lastname: Kurishima
authors.affiliation: Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Satoh
authors.affiliation: Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan.
authors.forename: Katsunori
authors.initials: K
authors.lastname: Kagohashi
authors.affiliation: Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
authors.forename: Kunihiko
authors.initials: K
authors.lastname: Miyazaki
authors.affiliation: Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Tamura
authors.affiliation: Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Shiozawa
authors.affiliation: Division of Respiratory Medicine, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan.
authors.forename: Gen
authors.initials: G
authors.lastname: Ohara
authors.affiliation: Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
authors.forename: Mio
authors.initials: M
authors.lastname: Kawaguchi
authors.affiliation: Division of Pathology, Mito Medical Center, University of Tsukuba, Mito, Ibaraki 310-0015, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Takayashiki
authors.affiliation: Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Hizawa
keywords: colon cancer; endobronchial metastasis; pulmonary metastasis