Fig. 2From: Polyglobulia in patients with hemangioblastomas is related to tumor size but not to serum erythropoietinDistribution of hemoglobin levels and tumor size; Red line marks level for high values in female, blue line marks level for high values in male. Except for 1 value (*), elevated hemoglobin levels were only found in patients with tumor size larger than 5 cm3Back to article page