Image characteristics of pulmonary cysts
| Frequency | Per cent in participants with pulmonary cysts (N=200) | Per cent in all participants (N=2633) | |
|---|---|---|---|
| Number of cysts | |||
| Solitary (1) | 128 | 64 | 4.9 |
| Sporadic (2–4) | 49 | 24.5 | 1.9 |
| Multiple (≥5) | 23 | 11.5 | 0.9 |
| Lobe of the lungs | |||
| Lower | 131 | 65.5 | 5 |
| Upper | 44 | 22 | 1.7 |
| Middle and lingular | 25 | 12.5 | 1 |
| Location in the lobe | |||
| Peripheral | 119 | 59.5 | 4.5 |
| Subpleural | 62 | 31 | 2.4 |
| Central | 19 | 9.5 | 0.7 |
| Calcification | |||
| Absent | 199 | 99.5 | 7.6 |
| Present | 1 | 0.5 | 0.04 |
| Vascular penetration | |||
| Absent | 180 | 90 | 6.8 |
| Present | 20 | 10 | 0.8 |