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Table 2 PTEN expression based on the intensity of color reaction

From: Altered PTEN expression; a diagnostic marker for differentiating normal, hyperplastic and neoplastic endometrium

Type of endometrium Color Intensity*
  0 +1 +2
Proliferative Endometrium (n)    
Early 0 1 12
Late 0 2 14
Hyperplasia (n)    
Simple 0 7 14
Atypical Complex 2 3 3
Carcinoma (n)    
EECA 15 8 6
  1. *0 = absent, +1 = light brown, +2 = brown to dark brown