II. Grading: Score
- Grade dominant Prostate tumor on scale 1 to 5
- Grade other histologic patterns on scale 1 to 5
- Sum 2 grades for total score of 2 to 10 for tumor
III. Interpretation: Prostate Cancer histology
- Grade 2 suggests highly differentiated tumor (best)
- Grade 10 suggests undifferentiated tumor (worst)
IV. Reference
- Wilson (1991) Harrison's Internal Medicine, p. 1630