Allergological investigations in patients 1 and 2
| Studied parameters | Patient 1 | Patient 2 |
|---|---|---|
| Tryptase (µg·L–1) | ||
| Tryptase during the crisis (time) | 10.3 (0.5 h)10.9 (2 h) | 152 (12 h) |
| Tryptase basal | 2.27 (24 h) | 20.5 (24 h)15.1 (several weeks later) |
| Prick test | ||
| Gelofusine® | Negative up to 40 mg·mL–1 | Positive at 4 mg·mL–1 |
| Porcine gelatin (undiluted) | ND | Positive |
| Fish gelatin (undiluted) | Negative | ND |
| Intradermal test (IDT) | ||
| Gelofusine® | Positive at 40 mg·mL–1 (4–9/10)* | Positive at 0.04 mg·mL–1 (4–8/20)* |
| Cetuximab | Negative up to 0.5 mg·mL–1 | ND |
| IgE (ImmunoCap® Phadia) kUA/L | ||
| Bovine gelatin | < 0.10 | > 100 |
| Bovine α-Gal thyroglobulin | < 0.10 | 0.39 |
| Pork | 0.20 | < 0.10 |
| Beef | 0.59 | 0.23 |
| BAT (Flow Cast, Bühlmann) | ||
| Gelofusine® | Positive | Positive |
| α-Gal | Negative | Negative |
| Cetuximab | ND | Negative |
| Beef meat | ND | Negative |
ND: not done; BAT: basophil activation tests; α-Gal: galactose-alpha-1,3-galactose *: a–b/c (a: initial diameter of the IDT papule; b: diameter of the IDT papule after 20 min; c: diameter of the IDT erythema after 20 min)