Serum concentrations of Total cholesterol, LDL, HDL, Triglycerides Statistical differences IA    n=18 IB     n=2 IIA  n=20 IIB  n=15      IIC  n=3 p (IA/IIA) p (IA/IIB) p (IIA/IIB) LDL cholesterol [mg/dl] 117.50   ± 49.16 121.00   ± 25.46 137.10 ± 61.78 104.73 ± 22.89 78.33   ± 18.04 p>0.05 p>0.05 p<0.033* Elevated LDL cholesterol 5/18 (27.8%) 1/2 (50.0%) 6/20 (30.0%) 2/15 (13.3%) 0/3 (0.0%) p>0.05 p>0.05 p>0.05 HDL cholesterol [mg/dl] 41.11     ± 10.63 52.50     ± 10.61 48.30   ± 8.97 48.4     ± 14.29 53.67   ± 11.37 p<0.029 p>0.05 p>0.05 Reduced HDL cholesterol 7/18 (38.9%) 0/2 (0.0%) 2/20 (10.0%) 4/15 (26.7%) 0/3 (0.0%) p<0.043 p>0.05 p>0.05 Triglicerides [mg/dl] 162.26   ± 100.77 151.33   ± 130.78 96.43   ± 41.32 78.33   ± 34.33 84.00   ± 9.54 p<0.025* p<0.002* p>0.05 Elevated triglicerides 10/18 (55.6%) 1/2 (50.0%) 1/20 (5.0%) 1/15 (6.7%) 0/3 (0.0%) p<0.009 p<0.037 p>0.05

Table 3: Serum lipids concentrations in particular groups. IA- group of patients treated surgically for tumors of hypothalamic-pituitary area; IB - group of patients treated with surgery and radiotherapy for tumors of hypothalamic-pituitary area; IIA –group of patients treated with surgery, chemo- and radiotherapy for tumors outside the h-p area; IIB – group of patients treated surgically for tumors outside the h-p area; IIC- patients with optic nerve glioma treated with chemotherapy. Analysis was made by Fisher test. Values marked by “*” were calculated by U Mann-Whitney test. Statistically important differences were marked as bold.