Bronchographic Studies of Lung Cancer:Correlation With histological types

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• Bronchographic findings of lung cancer were studied in relation to the histologicaltypes. According to the order of the bronchus where the tumor existed, lung cancerwas divided into two groups; 1. hilar type (proximal to the third order bronchus) and 2. peripheral type (distal to the fourth order bronchus). In the hilar type, bronchofiberscopic findings were also discussed especially in relation to the histologicaltypes.<BR>1) hilar type Bronchographic findings showed no remarkable characteristic features, while bronchofiberscopic findings showed some reasonable features in relation to thehistological types.<BR>2) peripheral type<BR>a. Squamous cell carcinoma in 27 cases: The bronchogram showed irregular orclear cut obstruction and adjacent to the foci the bronchi were dislocated bythe mass and irregular margins were demonstrated.<BR>b. Adenocarcinoma in 27 cases: Tapered obstruction was characteristic andaround the foci, frequently at the periphery of the lung, the bronchi wereretracted toward the mass, showing converging appearance.<BR>c. Poorly differentiated and large cell carcinoma in 23 cases: The bronchogramshowed almost the same findings as in squamous cell carcinoma, althoughmarked dislocation of the bronchi and loss of arborization were characteristicfeatures in these cases.<BR>d. In contrast to carcinoma, chronic pneumonia showed constriction of theproximal bronchi, bronchiectasis and loss of arborization.<BR>Histological analysis of the bronchographic findings of lung cancer may also beof great advantage to differentiate the disease from inflamatory lesions. Even selectivebronchography by Metras catheter method has often failed to identify early peripherallung cancer. Consequently, an approach to a new method should be devised forevaluating the lesions in the higher order of the bronchus.

• 特定非営利活動法人 日本肺癌学会の論文

特定非営利活動法人 日本肺癌学会 | 論文

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