For PNET patients, the level of glycerophospholipids significantly correlate with CRP and stage of diagnosis, and acylcarnitines according to metastasis: C3-DC C4-OH (rs = 0.56), and also stage of diagnosis C2 (rs = 0.61), C3-DC (C4 OH) (rs = 0.56, C14:2-OH (rs = 0.62). Here, CRP is linked to primitive neuroectodermal tumor.