Comparison of patterns of nodal necrosis on CT in KD and TLa
| KD (n = 24) | TL (n = 45) | P Value | |
|---|---|---|---|
| Extent of necrosis | .000 | ||
| Mild or moderate | 21 (87.5%) | 17 (37.8%) | |
| Severe | 3 (12.5%) | 28 (62.2%) | |
| No. of necroses | .003 | ||
| Single | 2 (8.4%) | 20 (44.4%) | |
| Multiple | 22 (91.6%) | 25 (55.6%) | |
| Location of necrosis | .339b | ||
| Central | 6 (25.0%) | 7 (15.6%) | |
| Peripheral | 18 (75.0%) | 38 (84.4%) | |
| Margin of necrosis | .000 | ||
| Indistinct | 19 (79.2%) | 9 (20.0%) | |
| Relatively WD or WD | 5 (20.8%) | 36 (80.0%) | |
| Perinodal infiltration | .192b | ||
| Absent | 2 (9%) | 11 (24%) | |
| Present | 22 (91%) | 34 (76%) | |
| Calcification | .012b | ||
| Absent | 24 (100%) | 34 (76%) | |
| Present | 0 (0%) | 11 (24%) | |
| CTNc | 22 (92%) | 19 (42%) | .000 |
| CTN/Md | 23 (96%) | 11 (24%) | .000 |
Note:—WD indicates well-defined; mild, <30% of an affected lymph node; moderate, 30%–70% of an affected lymph node; severe, >70% of an affected lymph node.
↵a Unless otherwise indicated, data are expressed as the number of patients, with percentages in parentheses.
↵b Calculated with the Fisher exact test. The other categoric variables were compared using the χ2 test.
↵c CTN of >44.5 HU is used as the threshold for differentiating KD from TL.
↵d CTN/M of >0.7 is used as the threshold for differentiating KD from TL.