Patient Characteristics
| Patient no. | Age | Sex | Presentation | Finding |
| 1 | 11 mo | F | Chylothorax after cardiac surgery | TN |
| 2 | 4 y | M | Chylothorax after cardiac surgery | TP |
| 3 | 4 mo | M | Chylothorax after cardiac surgery | TN |
| 4 | 5 y | F | Chylothorax after cardiac surgery | FN |
| 5 | 1 mo | F | Chylothorax after cardiac surgery | FN |
| 6 | 18 y | M | Chylothorax after cardiac surgery | TP or FN |
| 7 | 2 mo | M | Chylothorax after cardiac surgery | TP |
| 8 | 1 mo | M | Idiopathic congenital chylothorax | FN |
| 9 | 1 mo | F | Idiopathic congenital chylothorax | TN |
| 10 | 4 y | F | Pseudo chylothorax | TN |
| 11 | 1 mo | M | Congenital chylothorax/gastroschisis | TP |
| 12 | 15 y | M | Chylothorax/lymphangiomatosis | TP |
| 13 | 13 y | F | Chylothorax/lymphangiomatosis | FN |
| 14 | 15 y | F | Chylothorax/lymphangiomatosis | See text |
| 15 | 3 y | F | Chyloperitoneum/lymphangiectasia | TP |
| 16 | 10 mo | M | Chyloperitoneum after cardiac surgery | TP |
| 17 | 10 mo | M | Chyloperitoneum/lymphangiomatosis | TP |
| 18 | 9 y | F | Abdominal lymphangiomatosis | TP |
| 19 | 16 y | F | Exudative enteropathy | TN |
| 20 | 16 y | M | Exudative enteropathy | TN |
| 21 | 8 y | M | Chyluria | NA |
TN = true-negative; TP = true-positive; FN = false-negative; NA = not applicable.