We describe four patients with idiopathic oedema and elevated cytokine
s. All patients shared increased serum concentrations of soluble inter
leukin-2 receptors (sIL-2R). In three patients tumour necrosis factor
alpha (TNF-alpha), gamma interferon (IFN-gamma) and interleukin-2 (IL-
2) were transiently elevated. There was no evidence for an underlying
disease. Based on experimental and clinical data it is hypothesized th
at oedema formation in our patients is the consequence of cytokine ind
uced alteration of endothelial cells.