[Clinical and pathological characteristics of lung cancer with chronic obstructive pulmonary disease].
Forty-two lung cancer patients with COPD (7.9% of 534 lung cancers), and 84 age- and sex-ratio-matched controls who were randomly selected from lung cancer patients without COPD were examined. Lung cancers with COPD consisted of 25 cases of squamous call carcinoma (59.5%), 11 of adenocarcinoma (26.2%), 2 of small-cell carcinoma (4.8%), and 4 of large-cell carcinoma (9.5%). Squamous cell carcinoma occurred more in patients with COPD than in controls (35.7%) (p less than 0.01). In squamous cell tumors with COPD, 12 cases (48.0%) were centrally located and 13 cases (52.0%) were peripherally located. Squamous cell carcinoma of peripheral origin occurred more in patients with predominant emphysema (76.9%) than controls (36.7%) (p less than 0.05). Our results suggest that the COPD patients with predominant emphysema may be at greater risk for squamous cell tumors of peripheral origin.
Miyamoto
H
H
First Department of Internal Medicine, Hokkaido University, Sapporo, Japan.
Motoo
Hiraga
T
T
Katabami
Kishi
F
F
Isobe
H
H
Shimizu
T
T
Haneda
H
H
Kawakami
Y
Y
D000230:Adenocarcinoma / Q000150:complications / Q000473:pathology; D000368:Aged; D000369:Aged, 80 and over; D018288:Carcinoma, Small Cell / Q000150:complications / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000150:complications / Q000473:pathology; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications* / Q000473:pathology; D008175:Lung Neoplasms / Q000150:complications* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012306:Risk; D012907:Smoking / Q000009:adverse effects