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Table 4 Tumours classified according to Knosp and SIPAP

From: Intrasellar pressure in patients with pituitary adenoma – relation to tumour size and growth pattern

Classification 0 1 2 3 4 ChiSquare
Suprasellar
  Total, n = 93 6 11 12 47 17  
  Men, n = 52 3 6 10 27 6 p = 0.15
  Women, n = 41 3 5 2 20 11
Infrasellar
  Total, n = 91 52 35 4    
 Men, n = 51 27 21 3    p = 0.56
 Women, n = 40 25 14 1   
Parasellar dx
  Total, n = 91 16 32 21 16 6  
  Men, n = 51 7 19 13 10 2 p = 0.57
  Women, n = 40 9 13 8 6 4
Parasellar sin
  Total, n = 91 15 28 24 20 4  
  Men, n = 51 6 15 15 11 4 p = 0.27
  Women, n = 40 9 13 9 9 0
Anterior
  Total, n = 91 82 9     
  Men, n = 51 44 7     p = 0.17
  Women, n = 40 38 2    
Posterior
  Total, n = 90 76 14     
  Men, n = 50 38 12     p = 0.0135
  Women, n = 40 38 2    
Parasellar invasive Invasive Non-invasive     
  Total, n = 91 36 55     
  Men 21 30     p = 0.72
  Women 15 25    
  1. Table 4 shows the adenoma classification according to Knosp and SIPAP. Adenomas with parasellar grade 3–4 were considered as parasellar invasive. ChiSquare-test was performed to analyse difference in the distribution between men and women