 The glands are round to oval shaped and proportionally large, comparing them to Gleason pattern 3 tumors, and are approximately equal in size and shape to one another.
<clarity>  The glands are round to oval shaped and proportionally large, comparing them to Gleason pattern 3 tumors, and are approximately equal in size and shape to one another.
 The glands are round to oval shaped and proportionally large, compared to to Gleason pattern 3 tumors, and are approximately equal in size and shape to one another.