Table 3 Summary of pathology in two groups
Pathologic process | Incidence | |
|---|---|---|
Group A (n = 58) | Group B (n = 221) | |
Malignant | ||
Invasive adenocarcinoma | 16 (27.6%) | 104 (47.1%) |
Minimally invasive adenocarcinoma | 15 (25.9%) | 58 (26.2%) |
Adenocarcinoma in situ | 3 (5.2%) | 10 (4.5%) |
Squamous cell carcinoma | 1 (1.7%) | 1(0.5%) |
Metastases | 0 | 3 (1.4%) |
Pulmonary carcinoid | 2 (3.4%) | 1(0.5%) |
Benign | ||
Atypical adenomatous hyperplasia | 6 (10.3%) | 10 (4.5%) |
Minute pulmonary meningothelial-like nodules | 0 | 2 (0.9%) |
Nodular lymphoid hyperplasia | 3 (5.2%) | 4 (1.8%) |
Benign intraparenchymal lymph node | 2 (3.4%) | 4 (1.8%) |
Localized pneumonitis | 3 (5.2%) | 13 (5.9%) |
Cryptococcosis | 2 (3.4%) | 3 (1.4%) |
Tuberculosis | 0 | 2(0.9%) |
Granulomas | 2 (3.4%) | 1(0.5%) |
Sclerosing hemangioma | 0 | 1 (0.5%) |
Fibrotic nodule | 3 (5.2%) | 4 (1.8%) |