title: Pulmonary spread of laryngeal papillomatosis: radiological findings.
abstract: Laryngeal papillomatosis is a rare benign disease seen in children and young adults. The spread of laryngeal papillomas throughout the respiratory tract occurs rarely; and involvement of the distal bronchi, bronchioles, and lung parenchyma is very rare. We report a case of pulmonary spread of laryngeal papillomatosis in a 34-year-old man, focusing on the radiological evidence. Chest radiographs showed pulmonary nodules, but computed tomography scans more clearly demonstrated multiple small nodules showing cavitations and distributed centrilobularly. Pulmonary nodules and cavitations progressed gradually through the 6-year follow-up. The combination of clinical and characteristic radiological features suggests a diagnosis of pulmonary spread of laryngeal papillomatosis.
authors.affiliation: Department of Radiology, Nihon University School of Medicine, 30-1 Ooyaguchikamimachi, Tokyo, Japan. akatsumi@med.nihon-u.ac.jp
authors.forename: Katsumi
authors.initials: K
authors.lastname: Abe
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Motoichiro
authors.initials: M
authors.lastname: Takahashi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kosuda
authors.forename: Katsumi
authors.initials: K
authors.lastname: Hayashi
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Tanabe
authors.forename: Yoshie
authors.initials: Y
authors.lastname: Iwasaki
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Aida
authors.forename: Toshio
authors.initials: T
authors.lastname: Kawauchi
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Kita
authors.forename: Tatsumi
authors.initials: T
authors.lastname: Kaji
mesh_terms: D000328:Adult; D006801:Humans; D007822:Laryngeal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary*; D008297:Male; D009361:Neoplasm Invasiveness; D010212:Papilloma / Q000000981:diagnostic imaging* / Q000473:pathology*; D011859:Radiography