Endoscopic observation of peripheral airway lesions

M. Tanaka, O. Kawanami, M. Satoh, K. Yamaguchi, Y. Okada, F. Yamasawa

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Peripheral airways of 2 mm or less in diameter were observed in 142 patients by means of an ultrathin bronchofiberscope measuring 1.8 mm in outside diameter. On the basis of the observed and photographed endoscopic findings, an endoscopic classification of peripheral airway lesions was proposed. The endoscopic findings showed changes in the bronchial wall consisting of reddening, pallor, absence of mucosal luster, edema, engorgement of blood vessels, irregular mucosal surface, and elevated mucosa. In the lumen, stenosis, obstruction, ectasis, and deformation due to pressure were recognized, in addition to excessive secretion and pigmentation as morphologic abnormalities or abnormal findings at bifurcation.

Original languageEnglish
Pages (from-to)228-233
Number of pages6
Issue number2
Publication statusPublished - 1988

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine


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