TNF and pseudotumor cerebri: analyzed serum samples of 36 patients with IIH and of 40 healthy controls and discovered that interleukin‐1β levels were elevated (p = 0.012) in the IIH group, while interleukin‐8 and tumor necrosis factor‐α (TNF‐α) levels were reduced (p < 0.001 and 0.008, respectively), suggesting a unique inflammatory pattern in IIH.117