| Features | Ultrasound group (n = 62) | CT group (n = 48) |
| Longest diameter of lesion (cm) | 5.14 ± 1.78 | 4.69 ± 1.84 |
| Lesion location |
|
|
| Left lung | 28 (45.2) | 22 (45.8) |
| Right lung | 36 (54.8) | 34 (54.2) |
| Pathological diagnosis of lesions |
|
|
| Malignant lesions |
|
|
| Adenocarcinoma | 16 (25.8) | 19 (39.6) |
| Squamous carcinoma | 13 (20.1) | 4 (8.3) |
| Small cell carcinoma | 1 (1.6) | 4 (8.3) |
| Other types of cancer | 1 (1.6) | 1 (2.1) |
| Metastatic cancer | 2 (3.2) | 2 (4.2) |
| T-lymphoblastic lymphoma | 1 (1.6) | 0 (0.0) |
| Benign lesions |
|
|
| Mechanized pneumonia | 7 (11.3) | 3 (6.3) |
| Tuberculosis | 7 (11.3) | 6 (12.5) |
| Pneumonia | 3 (4.8) | 3 (6.3) |
| Neurofibroma | 1 (1.6) | 0 (0.0) |
| Pulmonary fungal infections | 0 (0.0) | 1 (2.1) |
| Inflammatory pseudotumour | 1 (1.6) | 0 (0.0) |
| Adenoma | 0 (0.0) | 1 (2.1) |
| Unspecified nature | 9 (14.5) | 4 (8.3) |