Characteristics of patients with dense versus blizzard signs on radial endobronchial ultrasonography
| Dense sign (n=18) | Blizzard sign (n=29) | P value | |
| Age (years) | 70 (27–80) | 70 (33–81) | 0.16 |
| Gender (female/male) | 7/11 | 12/17 | 0.86 |
| HRCT features at TBLC site | – | ||
| Consolidation | 18 (100) | 0 | |
| Reticulation | 0 | 15 (51.7) | |
| Ground-glass opacity | 0 | 13 (44.8) | |
| Nodules | 0 | 1 (3.4) | |
| Cryobiopsies per patient | 3 (1–4) | 3 (1–4) | 0.08 |
| Lobar location of TBLC | <0.01 | ||
| Right upper lobe | 2 (4.8) | 11 (13.6) | |
| Right middle lobe | 4 (9.5) | 1 (1.2) | |
| Right lower lobe | 14 (33.3) | 50 (61.7) | |
| Left upper lobe | 7 (16.7) | 0 | |
| Left lower lobe | 15 (35.7) | 19 (23.5) |
Data are presented as medians (ranges) or numbers (percentages).
HRCT, high-resolution CT; TBLC, transbronchial lung cryobiopsy.