TABLE 3.
Characteristics of the mediastinal mass
| Variable | All patients | Patients without TE |
Patients with TE |
P value |
|---|---|---|---|---|
| Total | 330 | 302 | 28 | |
| Mediastinal Mass | ||||
| No | 138 (41.8) | 130 (43.0) | 8 (28.6) | 0.13 |
| Yes | 191 (57.9) | 171 (56.3) | 20 (71.4) | |
| Unknown | 1 (0.3) | 1 (0.3) | 0 (0.0) | |
| Bulky Mediastinum | ||||
| Yes | 98 (29.7) | 86 (28.5) | 12 (42.9) | 0.13 |
| No | 226 (68.5) | 210 (69.5) | 16 (57.1) | |
| Unknown | 6 (1.8) | 6 (2.0) | 0 (0) | |
| Mediastinal mass (cm2) | ||||
| Median | 55.50 | 76.49 | 0.25 | |
| Minimum | 0.78 | 2.24 | ||
| Maximum | 216.00 | 177.00 | ||
| Site of Bulk | ||||
| Right | 48 (14.5) | 44 (14.6) | 4 (14.3) | 0.40 |
| Left | 53(16.1) | 48 (15.9) | 5 (17.9) | |
| Midline | 90 (27.3) | 79 (26.2) | 11 (39.3) | |
| Unknown | 1 (0.3) | 1 (0.3) | 0 (0.0) | |
| No Mass | 138 (41.8) | 130 (43.0) | 8 (28.6) | |
| CVL on Same Side of Mass | ||||
| Yes | 46 (13.9) | 40 (13.2) | 6 (21.4) | 0.18 |
| No | 55 (16.7) | 52 (17.2) | 3 (10.7) | |
| N/A^ | 229 (69.4) | 210 (69.5) | 19 (67.9) | |
| SVC Compression [n (%)] | ||||
| 0–24.9% | 233 (70.6) | 217 (71.9) | 16 (57.1) | 0.05* |
| >25% | 85 (25.8) | 73 (24.2) | 12 (42.9) | |
| Unknown | 12 (3.6) | 12 (4.0) | 0 (0.0) |
*
Bulky disease based on a transthoracic ratio% greater than or equal to 33.
^
includes patients without a mass or those whose mass was defined as midline
CVL, central venous line; SVC, superior vena cava