From: Clinical and positron emission tomography responses to long-term high-dose interferon-α treatment among patients with Erdheim–Chester disease
Median (pg/mL)
Range (pg/mL)
Normal range (pg/mL)
IL-6 level
15.7
3.1–95.8
< 5.9
IL-8 level
54
5–755
< 62
TNF-α level
17.1
6.6–208.0
< 8.1