Malignant, n = 53 (85.4%)
Adenocarcinoma, n = 51 (82.2%)
Large cell carcinoma, n = 1 (1.6%)
Typical carcinoid, n = 1 (1.6%)
Benign, n = 9 (14.6%)
Chronic flogosis
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Stage IA 1, n = 33 (62.3%)
Stage IA 2, n = 15 (28.4%)
Stage IA 3, n = 3 (5.6%)
Stage II B (N1 positive), n = 2 (3.7%)
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