Lung carcinoma in patients age younger than 30 years.
BACKGROUND
To the authors' knowledge, no study regarding lung carcinoma patients age <30 years has been published. Therefore, this study was undertaken to define the characteristics of lung carcinoma patients age <30 years.


METHODS
Information regarding 26 patients with primary lung carcinoma who were age <30 years was obtained from 10 medical institutions and reviewed retrospectively. For comparison, 304 patients age > or = 30 years who were admitted to the First Department of Internal Medicine at Toyama Medical and Pharmaceutical University between 1980-1996 were studied.


RESULTS
Among the characteristics observed in the group of lung carcinoma patients age <30 years was a high incidence of female gender, no history of smoking, so-called "low grade malignancy," American Joint Committee on Cancer Stage I disease, and previous surgical resection. In addition, a low incidence of squamous cell carcinoma was noted, and a more favorable prognosis was observed.


CONCLUSIONS
The current study noted clinical features that could be defined clearly in lung carcinoma patients age <30 years.
Mizushima
Y
Y
1st Department of Internal Medicine, Toyama Medical and Pharmaceutical University, Japan.
Yokoyama
A
A
Ito
M
M
Manabe
H
H
Hirai
T
T
Minami
H
H
Anzai
Y
Y
Sato
H
H
Kusajima
Y
Y
Yamashita
R
R
Kobayashi
K
K
Sugiyama
S
S
Kobayashi
M
M
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002276:Carcinoid Tumor / Q000453:epidemiology / Q000473:pathology; D002289:Carcinoma, Non-Small-Cell Lung / Q000453:epidemiology / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000473:pathology; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D015993:Life Tables; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D012189:Retrospective Studies; D012737:Sex Factors; D016019:Survival Analysis; D015996:Survival Rate