MRI findings Score
Tumor size <2 cm 2-4 cm >4 cm
Maximum sagittal diameter 1 2 3
Maximum coronal diameter 1 2 3
Relation with surrounding structure      
Below clinoidal line 1    
Reach foramen of Monro 1    
Reach mammillary body 1    
Tumor composition      
  cystic only multi-cystic mixed solid only
  0 1 2 3
Grade   Score N  
Grade I   2 0  
Grade II   3–5 38  
Grade III   6–8 45  
Grade IV   9–11 16  
Grade V   12 1  
N: number of cases analyzed in the present study
Table 1: The proposed new classification system for craniopharyngiomas.